Appendix 1. Description of samples and sample sites.

Appendix 1. Description of samples and sample sites. Dist, district: AS, Antelope Springs; AU, Austin; AW, Awakening; BD, Black Diablo; BM, Battle Mountain; BR, Bruner; BT, Bottle; BV, Buena Vista; BW, Beowawe; CZ, Cortez; EU, Eureka; GC, Gold Circle (Midas); GO, Golconda; GR, Gold Run; HT, Hilltop; IND, Independence; IP, Iron Point; IV, Ivanhoe; LM, Lone Mountain; LV, Leadville; LW, Lewis; MJ, Majuba; MB, Mineral Basin; MC, Mill City; MD, Modarelli; MH, Mt. Hope; NBM, North Battle Mountain; NT, National; OS, Osgood Mountains; RO, Rochester; RR, Railroad; RW, Ravenswood; SF, Safford; SM, Swales Mountain; SR, Star; SS, Scraper Springs, ST; Seven Troughs; STm, Standard mine; TM, Ten Mile; TN, Tenabo; TO, Tonopah; TR, Trinity; TU, Tuscarora; W; Willard; na, not applicable. Deptype, deposit type: BA, barite; EV, epithermal vein; Fe, iron; GV, gold vein; Hg, mercury; PC, porphyry copper; PMR, polymetallic replacement; PMV, polymetallic vein; SHG, sediment-hosted gold; SK, skarn; SX, Sedex (sedimentary exhalative); VMS, volcanogenic massive sulfide; VU, vein uranium; --, not applicable. Samtype, sample type: AR, altered rock; D, mine waste dump; G, smelter slag; H, drill hole cuttings; R, rock or other solid sample; SS, stream sediment; SX, sediment coating; T, mill tailings; HLW, heap leach water (inactive); MDW, mine adit or dump drainage; MPND, small pond in trench or pit; MTW, mill tailings water; PLW, pit lake or small pond; PUDW, puddle; SPW, spring water; SW, stream; TPW, tailngs pond; TSW, tailings seep; ns, no sample. Chem Anlysis, chemical analysis: A, alkalinity; G, rock analysis; Hg, Hg in water; L, leachate solution; W, water; na, no analysis. Other abbreviations and symbols: W-pH, pH of water; W-cond, conductivity of water; North-dd, north latitude in decimal degrees; West-dd, west longitude in decimal degrees; cal, calcareous; gn, galena; grn, green; py, pyrite; qtz, quartz; ser, sericite; sl, sphalerite; tet, tetrahedrite; alt, altered; , greater than; --, not applicable.

Site NH101 NH102 NH103 NH104 NH105 NH106 NH107A NH107B NH108 NH109 NH111 NH112 NH113 NH151 NH152 NH153 NH154 NH155 NH156 NH157 NH158 NH159 NH160 NH161 NH162 NH163 NH201 NH202 NH203 NH204 NH205 NH206 NH207 NH208 NH209 NH210 NH211 NH212 NH213 NH214 NH215 NH216 NH217 NH218 NH219 NH220 NH221 NH222 NH223 NH226 NH227 NH228 NH229 NH230 NH231 NH232 NH233 NH234 NH235 NH236 NH238 NH239 NH240 NH241 NH242 NH243 NH244 NH246 NH247 NH248 NH249 NH250 NH252 NH253 NH254 NH255 NH256 NH257 NH258 NH260 NH261 NH262 NH263 NH264 NH268R NH269R NH270R NH300 NH301 NH302 NH304 NH305 NH306 NH308 NH309 NH310 NH312 NH313 NH314 NH315 NH316 NH318 NH319 NH322 NH324 NH325 NH326 NH327 NH328 NH329 NH330 NH332 NH333 NH334 NH339 NH340 NH341 NH342 NH343 NH400 NH401 NH402 NH403 NH404 NH405 NH406 NH407 NH408 NH410 NH411 NH412 NH413 NH414 NH415 NH416 NH417 NH418 NH419 NH420 NH421 NH422 NH423 NH425 NH426 NH427 NH428 NH429 NH430 NH431 NH432 NH433 NH434 NH435 NH436 NH437 NH438 NH439 NH440 NH441 NH442 NH443 NH450 NH451 NH452 NH453 NH455 NH456 NH457 NH458 NH459 NH461 NH462 NH463 NH464 NH465 NH466 NH467S NH467T NH468 NH469 NH470 NH471 NH472 NH473 NH474 NH475 NH476 NH477 NH479 NH480 NH481 NH482 NH483 NH484 NH485 NH486 NH487 NH488 NH489 NH490 NH491 NH492 NH493 NH495 NH496 NH498 NH501 NH502 NH505 NH507 NH508 NH509 NH510 NH511 NH512 NH513 NH514 NH515 NH516 NH517 NH518 NH519 NH520 NH521 NH522 NH523 NH524 NH525 NH526 NH527 NH528 NH529 NH530 NH531 NH532 NH533 NH534 NH550 NH551 NH552 NH553 NH555 NH556 NH558 NH561 NH563 NH565 NH566 NH571 NH577 NH583 NH584 NH586 NH587 NH588 NH591 NH592 NH593 NH594 NH596 NH597 NH598 NH599 NH601 NH602 NH603 NH604 NH605 NH606 NH607 NH608 NH609 NH611a NH611b NH613 NH614 NH615 NH616 NH618 NH619 NH621 NH623 NH624 NH628

Date 9/21/1995 9/21/1995 9/22/1995 9/22/1995 9/23/1995 9/24/1995 9/25/1995 9/25/1995 9/25/1995 9/26/1995 9/27/1995 9/27/1995 9/27/1995 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 6/17/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/19/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/20/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/21/1996 7/22/1996 7/22/1996 7/22/1996 7/23/1996 7/23/1996 7/23/1996 7/23/1996 7/23/1996 7/24/1996 7/24/1996 7/24/1996 7/24/1996 7/24/1996 7/24/1996 7/24/1996 7/24/1996 7/25/1996 7/25/1996 7/25/1996 7/25/1996 7/25/1996 7/25/1996 7/25/1996 7/25/1996 7/26/1996 7/26/1996 7/26/1996 7/19/1996 7/19/1996 7/20/1996 9/19/1996 9/19/1996 9/19/1996 9/19/1996 9/19/1996 9/20/1996 9/20/1996 9/20/1996 9/21/1996 9/21/1996 9/21/1996 9/22/1996 9/22/1996 9/22/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/23/1996 9/24/1996 9/24/1996 9/24/1996 9/24/1996 9/24/1996 9/24/1996 5/16/1997 5/16/1997 5/16/1997 5/16/1997 5/16/1997 5/16/1997 5/17/1997 5/17/1997 5/17/1997 5/17/1997 5/18/1997 5/18/1997 5/18/1997 5/18/1997 5/18/1997 5/18/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/19/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/20/1997 5/21/1997 5/21/1997 5/21/1997 5/21/1997 5/21/1997 5/21/1997 5/22/1997 5/22/1997 5/22/1997 5/22/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/23/1997 5/24/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/25/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/26/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/27/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 5/28/1997 6/14/1997 6/14/1997 6/14/1997 6/14/1997 6/14/1997 6/14/1997 6/14/1997 6/14/1997 6/14/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/15/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/16/1997 6/17/1997 6/17/1997 6/17/1997 6/17/1997 6/17/1997 6/17/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997 6/18/1997

Dist BM BM GR BD CZ BM RR RR RR LM TU TU TU BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM BM HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT LW LW LW BM BM GR GR GR GR GR GR GR GR CZ CZ CZ CZ CZ CZ CZ CZ BV BV BV BM BM HT LM LM LM LM LM LM LM RR RR RR RR RR RR RR BV BV BV BV BV BV BV BV BV BV BV BV HT HT HT HT HT HT GC GO GO GO IP IP SS SS SS BR GC GC GC GC GC GC GC GC GC GC GC GC GC GC GC GC IV IV IV IV IV IV IV IV IV IV IV IV IV IV IV IV AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU AU RW BM BM BM BM BM BM BM BM BM BM BM BM HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT HT -BW BW BW BW BT BT TN TN TN TN TN BM BM BM BM BM BM BM BM BM BM BM -NBM NBM NBM NBM BM BM BM BM BM BM BM BM BM LW LW HT HT HT HT HT HT HT HT HT TM TM TM TM BD BD BD BD BD BD BD BT BT BT BT BT BT NT NT NT NT NT NT NT NT NT NT

Deptyp --PMV -PMV --PMV PMV PMV EV EV EV --PMV PMV PMV PMV PMV PMV PMV ----PMV PMV PMV PMV PMV -PMV PMV -PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV -PMV PMV PMV PMV PMV -PMV PMV BA PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV -PMV PMV PMV PMV PMV PMV PMV PMV ---PMV PMV PMV PMV PMV PMV SX -SK SK PMV -------SK -SK SK SK -PMV -SK SK -PMV PMV PMV PMV ---SHG PMV PMV PMV PMV --EV PMV EV EV EV EV EV EV EV EV EV EV EV EV EV EV EV EV Hg Hg Hg --Hg -Hg Hg Hg Hg --Hg Hg Hg SHG SHG SHG SHG VU VU VU VU VU PMV PMV PMV PMV PMV PMV -PMV PMV SK SK PMV pmv PMV PMV SK PMV SK PC -SK -PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV -PMV PMV PMV PMV PMV -BA BA Hg Hg PMV PMV SK SK SK PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV -BA BA PMV BA SK PMV PMV PMV SK PMV PMV SK SK PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV PMV EV VMS VMS VMS VMS VMS VMS VMS Hg Hg Hg Hg -Hg Hg EV -EV EV EV Hg EV EV EV

Samtype G G T AR T G G T T T D D D AR SS D D D D T T D SS SS SS SS SW T SW D T SS MDW MDW SS MDW T T MDW D MDW D MDW T SW D SW SS D MDW D T T SS D D PLW D D D T D D D D D D PLW D AR T D SS D D T D D D T D SS SS SS SW MDW SW D T T D SS D D D AR H H H H H AR AR H AR AR AR AR AR AR AR AR AR T D D D AR AR AR D T D D D AR AR AR D T D SPW D T D D D D SW D D SW SW D SW D D T H AR PUDW H D T D, AR T H AR SW SW T AR MDW SW SW D D D D D D D D D D D SS T D SW D SW T SW SW SPW D SW D AR SPW SS MDW SW SW T SW MDW MDW D MDW MDW D AR SW M,s D SPW SW SW AR T D T T D D D H M,T H T SPW SPW D SW MDW SPW D D D MDW SW D D D D SW SW PUDW PUDW PUDW SW SPW PUDW PUDW D T SW SW MDW PUDW SW MDW SW SW SW D D T D D PLW AR D D D PUDW SPW T SW T SS T D SW SS MDW T D D MDW SW SW

Chem anlysis G G G G G G G G G G G G G G G G G G G G G G G G G G W G W G G G W W G W G G W G W G W G W G W G G W G G G G G G W G G G G G G G G G G W G G G D G G G G G G G G G G G G W W W G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G, L G, L G G, L G G G G, L L G G, L G, L W G, L G, L G, L G, L G, L G, L W G, L G W W G W G G G, L G G W G, L G G G G, L G G W W G G W W W G,L G,L G,L G,L G,L G G G G G G G G G W G W L W W W G, L W G, L G, L W G W W W G. L W W W G, L W W G, L G W W G, L W W W G G, L G G, L G, L L G G, L G G,W G L W W G, L W W W G G G, L W W G G G G W W W W W W W W W G, L L W W W W W W W W W L G, L L G, L L WD L G, L G, L L W W G, L W G, L G G G W G W G, L G, L G, L W W W

W-pH --------------------------7.2 -8.7 ---4.0 2.4 -6.9 --7.5 -4.1 -2.6 -6.7 -7.2 --3.1 ------9.7 ----------8.2 ----------------7.2 4.0 6.7 --------------------------------------------8.1 ------7.9 --8.3 8.5 -8.4 -----8.2 -------7.7 7.6 --8.3 8.4 8.8 --------------6.8 -7.5 -7.2 8.2 8.0 -8.3 --8.3 -8.2 7.1 7.5 -5.0 7.0 4.0 -2.8 3.4 --4.3 2.7 -6.9 7.1 7.6 ---------6.7 --6.7 6.5 -7.2 2.2 6.3 ---6.5 7.9 ----8.1 8.2 2.9 2.7 3.0 8.5 3.2 4.3 3.9 --4.2 6.6 2.8 2.4 2.8 2.5 6.9 7.0 7.3 -----7.6 ----2.7 6.6 -8.3 ----8.7 -3.0 ---2.9 7.3 3.9

W-cond --------------------------710 -600 --->2,000 >2,000 -940 --980 ->2,000 ->2,000 -340 -740 --1,540 ------>2,000 ----------390 ----------------710 >2,000 340 --------------------------------------------460 ------490 --310 320 -480 -----80 -------300 180 --1,330 1,250 230 --------------160 -740 -1,050 510 1,020 -440 --580 -660 550 630 -310 710 630 ->2,000 1,210 --710 1,740 -280 470 410 ---------940 -->2,000 >2,000 -1,940 >2,000 1,640 ---940 350 ----610 630 1,590 1,790 1,220 480 >2,000 460 1,330 --920 580 1,810 >2,000 880 1,460 660 220 310 ----->2,000 ---->2,000 710 -700 ----340 -610 ---1,510 310 830

North-dd 40.5653 40.5675 40.8178 40.4719 40.1414 40.5344 40.5343 41.1300 41.1269 41.8281 41.3219 41.3219 41.3233 40.6661 40.6689 40.6678 40.6678 40.6894 40.6728 40.6133 40.6133 40.6128 40.6103 40.6094 40.6128 40.5489 40.6028 40.6158 40.6144 40.5477 40.5490 40.5503 40.5556 40.5561 40.5577 40.5656 40.4305 40.4303 40.4186 40.4287 40.4289 40.4293 40.4294 40.4280 40.4283 40.4278 40.4222 40.4332 40.4208 40.4231 40.4232 40.4252 40.4128 40.4290 40.4453 40.4823 40.4800 40.4180 40.4185 40.3820 40.4637 40.4615 40.4567 40.6430 40.6492 40.7962 40.7845 40.8181 40.8178 40.8108 40.8178 40.8268 40.2082 40.1690 40.1782 40.1442 40.1515 40.1515 40.1515 40.1435 40.3317 40.5973 40.6020 40.6102 40.6028 40.5556 40.4283 41.1522 41.1303 41.1272 41.1206 41.1322 41.1100 41.1136 41.1367 40.5272 40.5353 40.5344 40.4617 40.4625 40.4642 40.6000 40.5994 40.6000 40.5994 40.5992 40.6006 40.6014 40.6011 40.4344 40.4342 40.4344 40.4183 40.4164 40.4269 40.4281 40.4289 40.4269 40.4258 40.9244 40.9278 40.9283 40.9283 40.9394 40.9083 41.3758 41.3717 41.3719 41.4639 41.2647 41.2597 41.2572 41.2406 41.2350 41.2361 41.2414 41.2411 41.2472 41.2406 41.2639 41.2622 41.2622 41.2544 41.2211 41.2344 41.1158 41.1161 41.1228 41.1194 41.1203 41.1197 41.1217 41.1397 41.1450 41.1439 41.0525 41.0528 41.0525 41.1078 41.1550 41.1558 39.3864 39.3864 39.3864 39.3786 39.4597 39.4600 39.4589 39.4581 30.4583 39.4872 39.4931 39.4956 39.1622 39.5050 39.5439 39.5072 39.5097 39.7789 40.9358 40.6019 40.6117 40.6128 40.6122 40.6239 40.6483 40.6450 40.6775 40.6886 40.6925 40.6925 40.7017 40.4275 40.4283 40.4278 40.4294 40.4183 40.4267 40.4267 40.4253 40.4267 40.4269 40.4269 40.4256 40.4244 40.4211 40.4214 40.4133 40.4264 40.6756 40.5767 40.5783 40.5828 40.5836 40.3294 40.3294 40.3014 40.3014 40.3022 40.3778 40.3778 40.3967 40.5486 40.5492 40.5458 40.5561 40.5544 40.5558 40.5761 40.5692 40.5692 40.5653 40.0681 40.7225 40.7225 40.7103 40.7017 40.6019 40.6083 40.6133 40.6128 40.6208 40.5817 40.5458 40.5689 40.5686 40.4567 40.4608 40.4281 40.4267 40.4272 40.4275 40.4264 40.4189 40.4278 40.4319 40.4114 41.0228 41.0214 41.0203 40.9764 40.5439 40.5433 40.5436 40.5422 40.5433 40.5428 40.5433 41.3589 41.3606 41.3611 41.3586 41.3597 41.3583 41.7828 41.7828 41.7828 41.7922 41.7922 41.7931 41.7911 41.8367 41.8367 41.8394

West-dd 117.1294 117.1311 117.5186 117.6786 116.6044 115.9836 115.9835 116.0067 116.0044 115.9483 116.2303 116.2303 116.2300 117.0878 117.0867 117.0800 117.0803 117.0794 117.0717 117.0694 117.0700 117.0783 117.0800 117.0489 117.0533 117.0961 117.0428 117.0730 117.0522 117.1113 117.1072 117.0933 117.1172 117.1150 117.1082 117.1033 116.8268 116.8230 116.8306 116.8403 116.8481 116.8480 116.8461 116.8587 116.8650 116.8468 116.8467 116.8222 116.8355 116.8131 116.8130 116.8132 116.8040 116.8157 116.7738 116.7557 117.7550 116.8387 116.8398 116.7622 116.8988 116.8972 116.8920 117.0643 117.0620 117.5122 117.5230 117.5319 117.5320 117.5323 117.5186 117.5265 116.5883 116.6635 116.6655 116.6083 116.5937 116.5937 116.5937 116.5933 116.7228 117.2613 117.2612 117.2588 117.0428 117.1172 117.8650 115.9794 116.0064 116.0050 116.0006 116.0128 115.9808 115.9753 115.9633 116.0172 116.0075 116.0061 115.9983 115.9989 116.0031 117.2467 117.2464 117.2469 117.2472 117.2475 117.2472 117.2478 117.2478 117.2472 117.2475 117.2472 117.2478 116.8272 116.8439 116.8472 116.8472 116.8478 116.8486 117.5044 117.5042 117.5056 117.3242 117.3175 117.3950 116.6525 116.6589 116.6591 116.6511 116.7836 116.7839 116.7828 116.7922 116.7872 116.7881 116.7808 116.7850 116.7856 116.7864 116.7953 116.7944 116.7944 116.8017 116.7739 116.7533 116.5903 116.5911 116.5711 116.5667 116.5642 116.5658 116.5600 116.6133 116.6208 116.6200 116.6244 116.6278 116.6272 116.6064 116.6408 116.6267 117.0836 117.0839 117.0844 117.0856

117.1003 117.1011 117.2694 117.1022 117.1025 117.0831 117.0800 117.0608 117.0628 117.0678 117.0547 117.0956 117.0744 117.2611 117.0425 117.0447 117.0528

117.0706 117.0747 117.0642 117.0644 117.0597 117.0808 117.0806 117.0872 117.0872 117.0806 116.8239 116.8217 116.8214 116.8208 116.8294 116.8375 116.8381 116.8364 116.8450 116.8453 116.8456 116.8450 116.8097 116.8103 116.8106 116.8117 116.8125 116.6564 116.5167 116.5214 116.4886 116.4878 116.6547

Site description Slag, Galena smelter Slag, Galena smelter #2 Tailing, Adelaide mill Silicified and leached volcanic Old Cortez mill tailings, carbonate Slag, Bullion smelter,Railroad Dist Bullion smelter slag Mill tailings, Rip Van Winkle Zn Mill tailings no. 2, Rip Van Winkle Zn Golden Ensign mill tailings, tan Fe oxide-rich dump picks, Tuscarora Chlorite-carbonate picks, same dump, Tuscarora Ocher alt volcanic rock, py-ser alt? Select sulfide-oxide at contact, grn CuOx Stream sediment Select py-gn-sl-rich pile Qtz-py veinlets, select waste Oxide-Fe oxide waste Morningstar dump, big; clay and Fe oxide Buckingham mill tailings Buckingham mill tailings with crust Sulfidic waste Stream sediment Stream sediment below mill Stream sediment, visible tailings Stream sediment, below placer mines Long canyon stream Buckingham mill tailings Long Canyon creek Iron Canyon Fe oxide-rich gossan Iron Canyon rusty mill tailings Stream sediment below placer and bedrock mines Butte mine(?) portal, acidic drainage Drainage after flowing over sulfidic dump Stream sediment; includes Fe oxide layer from recent acid rock drainage Collapsed portal in Galena Canyon, low flow Philadelphia(?) mill tailings, yellow-ocher Philadelphia(?) mill tailings, ocher Dean mine, lower portal, 1990s Dean mine lower dump, sulfide and carbonate Dean mine, 1990s, middle elevation portal in siliceous rocks Dean mine, middle, high sulfide dump, no carbonate Dean mine, drainage is ruby color in pond Marigold mill tailings, pale crème Creek below Marigold tailings Select Fe-oxide-rich veinlets in quartzite Creek below mill tailings Stream sediment below Dean Canyon and mill tailings Kattinhorn mine, pyrite-silica veins in Qtzite Noname mine adit, low flow Hilltop mining area, west adit, pyritic veinlets Hilltop area, west mill, crème Hilltop area, east mill tailings, crème Hilltop; creek west of tailings and dumps Barite pit, select pieces with Fe oxide Slaven barite mine, crushed rejects Slaven canyon, barite pit lake Blue Dick ore bin, pyrite-silica, stibnite? Blue Dick mine? Pyritic breccia stockworks Gray Eagle mine dump, qtz-py-gn-sl B. O'Neal mill tailings, medium gray B O'Neal lower tunnel dump, any sulfide minerals? B O'Neal upper level dump, qtz-carbonate-sulfide veinlets Snow Gulch prospect, oxidized py-qtz-gold veins Snow Gulch, Fe oxide-pyrite-qtz-gold dump Adelaide district, SW dump, visible gn-py, tet? Adelaide district, SW, dump with py-qtz veins, low Mo oxide Adelaide Crown, pit lake Adelaide Crown narrow pit, obscure ore minerals, oxide Adelaide Crown second narrow pit, qtz veins, ore minerals? Adelaide Crown mill tailings, light ocher Dump north of Adelaide Crown, qtz-py veins, some gn Cortez; stream-sediment in Mill Canton below mines South Cortez, turquoise mine dump, open cut South Cortez, small mine dump, py-qtz-Fe oxide Cortez site; old mill tailings look like dunes, soft and pale Cortez silver mine, celluar qtz veins, some dark sulfides Cortez silver mine, select qtz-py-tet?-sl veins Cortez new adit SW, qtz-sl veins New Cortez silver mill, concrete, tan fine tailings N Tenabo (Lander?) small mine dump, veins qtz-py-Fe oxide Alluvium in small draw SW of Buffalo Valley mine Alluvium in draw west of Buffalo Valley mine Alluvium in larger draw, NW of Buffalo Valley mine Creek, split of W201 Mine drainage, split of W207 Creek, split of W219 Prospect dump, selected Fe oxide-rich pieces. Sedex? Rip Van Winkle, gray mill tailings Rip Van Winkle waste at mill Rip Van Winkle waste at mill Coon Creek alluvium west of Rip Van Winkle Cu-Fe-oxide dump, skarn prospect Selected magnetite + Cu-oxide chunks, skarn Selected picks, Cu oxide + galena? Silicified porphyry Cuttings, dark calcareous shale Cuttings, light silt? Cuttings, reddish jasperoid Cuttings, jasperoid and siltite Cuttings, red jasperoid Silicified leuco-porphyry Skarn contact, greenish Cuttings, dark hornfels Oxidized calc-silicate Select Fe-oxide-rich stockworks Veinlets calcite in hornfels Qtz-py residual veinlets Fe-oxide fault gouge Pyritic metabasalt(?) Pyritic calc-silicate Marble or calc-silicate, white Fe oxide in gouge Tan mill tailings, small Py-ser-alt granitic rock, gn-sl Pyritic qtz veins in Qtzite and sill Pyritic, gn-sl veins in Qtzite Oxidized py-ser-alt granitic rock Chlorite-altered granitic rock, some py Kramer Hill pit; silicified sediments, veinlets Kramer mine lower (old) adit, sulfide/oxide dump Kramer mine small mill, tan tailings Iron Point, Silver Coin dump picks with Fe oxide Silver King, selected Fe-oxide materials South Iron Point, prospect, Cu-oxide films on mafic rock Scraper Springs, zunyite-silica-altered volcanics Zunyite-silicified breccia Zunyite-silica-altered breccia with Fe oxide Burner Hills, Mint mine, drainage from adit, high sulfide-qtz dump Midas; tan to pink tailings from Elko Prince mill Elko Prince sulfidic waste Spring SE of Elko Prince mill tailings Midas mine, Fe oxide in veinlets rhyolite Jackson mill tailings, tan Jackson mine, mixed sulfide and sulfate materials East of Jackson mine, dump, yellow-ocher oxide Dump west of 3 shafts, mixed sulfide and oxide Rex mine dump, orange-ocher oxidized materials Creek, flows south from Rex Miner's Gold dump, typical sample, -2 mm, mixed oxide-sulfide Oxide-sulfide dump, -2 mm Creek, above Gold Miner Creek, below mines West of Esmeralda mine and mill, silicified-Fe-oxide altered Squaw Creek, NE of mining area Old Timer mine, Hg dump, silica rock Mercury dump, red sinter or opalite Butte #1 mine; white opalite calcine from retort Drill cuttings; upper is tuff, lower is dark Vinini sediments Chips of altered, silicified volcanics Small pit puddle Cuttings, silicified tuff Fox mine, siliceous Hg waste, gray stibnite? Governor mine/retort, calcine from retort Governor mercury mine dump, gray and red alteration Silvercloud Hg mine, white silica with red matrix Drill cuttings, dark rock with fine sulfides Silvercloud pit; opalite carries best Hg Spring below Jackson mine Spring, low flow, livestock use Calcine from 1970s(?) retort; opal and vitreous tuff Quito gold mine/pit; dark limey wallrock Settling pond NE of pit Creek, above (west) of pond Birch Creek, background in fault zone Apex/Rundberg mine;High radioactivity, high py ore? Stockpile Medium radioactivity, weathered dump, waste? High radioactivity, high py stockpile? Shaft dump, typical lower radioactivity waste Very high radioactivity part of dump, high pyrite Jackpot mine, big white qtz veins, some rusty streaks Byers mine (?); bull qtz vein in granitic rock Big dump from shaft, NE of town Lander Hill, mostly altered granitic rock some qtz-Mn oxide Kilburn tunnel, select chunk sulfide-qtz dump Slaughterhouse Canyon, quartz with some dark sulfides Pony Canyon west of Austin, alluvium, granite sand Tailings from Pony Canyon mill Ravenswood; skarn, oxide dump Stream, south of Copper Basin pit and dumps Copper Basin dump outside fence, Cu-oxides Licking Creek east of Buck. Mill Buckingham(?) mill tailings, yellow crust Small creek west (above) mill and larger mine dumps Long Canyon creek headwaters, west of Copper Queen Spring in Harmony quartzite, Snow Gulch Oxide dump; typical sample -2mm Elder Creek, north of mine dumps Dump, green Cu oxide, typical sample, - 2mm Small pit diggings, select Cu-Fe-oxide chips Spring, west side of Elder Creek basin Dry alluvium, north of mining area Creek north of Dean mines Creek leaving settling pond, N of Dean workings Creek entering settling pond Philadelphia(?) mill tailings, rusty ocher parts Small flow below Kattenhorn mine Dean mine, lower, in carbonate rocks, mine drainage Creek below upper Dean workings, much orange Fe precipitate Lower Dean dump, carbonate rocks, some sulfides Dean mine, middle; drainage turns red Mine drainage after flowing on sulfide dump Middle Dean dump, high sulfide, mostly granitic rock, some quartzite Altered granitic rock outcrop, silicified Hilltop(?) creek, NW (below) mill and tailings; makes red coatings Hilltop haulage tunnel in siliceous sediments drainage makes Fe oxide coatings Dump from adit, quartzite with fine sulfides Small flow/spring SE of Hilltop mining area Stream NW of mixing zone; water is clear Humboldt River Barite open pit, red chert or alteration in pit Barite mine, crushed rock, barite rejects? Red Devil mine, dump, silicified conglomerate Retort tailings or rejects, siliceous conglomerate Hg-silica rock tailings Mill tailings, N of Tenabo near Indian Creek

116.6558 N Tenabo mill, native sulfur on dump 116.6806 116.6806 116.6811 116.7597 116.7758

Alternberg Hill, skarn zone, selected picks rich in Fe oxide Alternberg Hill, skarn zone, typical oxide sample,- 2 mm, same site as 514 Drill cuttings into calc-silicate rock Gray Eagle mill tailings, tan Drill cuttings in dark chert 117.1044 Iron Canyon rusty mill tailings 117.1100 Spring-fed small flow, Iron Canyon 117.1117 Spring in Iron Canyon west of mines 117.1086 Iron Canyon mine dump, ocher to red oxides 117.1025 Butte Canyon stream 117.1178 Adit mine drain, pipe from inside 117.1072 Spring in mid canyon; creates ocher precipitate 117.1336 NE of Galena, large adit on fault in Battle Conglomerate, select Fe oxides 117.1317 White and Shiloh mine dump, select sulfidic ore pieces 117.1319 White and Shiloh dump, typical dump sample, -2mm 117.1208 Small workings, collapsed adit, drain used for stock 116.9317 Humboldt river 116.8467 Barite pit waste , oxides 116.8469 Barite pit stockpile(?) ore 116.8544 Select oxides in dark sediments 116.8650 Pink fine materials from mill (barite waste) 117.0433 Stream 117.0497 Stream 117.0694 Mill tailings puddle 117.0739 Dump puddle 117.0553 Pit puddle 117.0703 Streat 117.1097 Spring, Iron Canyon 117.1311 Pit puddle 117.1319 Dump puddle 116.8920 Betty O'Neal dump, dark carbon. Phyllite, calcite

116.8958 Betty O'Neal mill tailings, gray 116.8361 116.8311 116.8456 116.8467 116.8478 116.8333 116.8239 116.8183 116.8008 117.8700 117.8692 117.8692 117.9092

Stream, near Dean mines, Fe oxide on bed Stream, few mines, clean bed Dean, middle portal, mine drain flows over sulfide dump Upper Dean workings, puddle in cut on dump, clay bottom Spring in altered rocks, roadcut east of upper workings Mine drainage ponded at portal, upper Dean mine Stream, below settling pond (ex-leach operation?) Stream, below Dean mines, above tailings Maysville Canyon creek, below junction with Dean mine creek and tailings Pansey Lee, dump at shaft, typical sample, sulfidic Pansey Lee, dump at shaft, typical sample 2,000 ----->2,000 270 -------320 ---220 ------750 -----802 --1,640 930 650 -830 ----350 890 >2,000 >2,000 --->2,000 --->2,000 --240 -440 -230 --810 >2,000 >2,000 1,320 ->2,000 -->2,000 >2,000 >2,000 -230 ->2,000 -1,980 880 -890 -900 ---------------1,390 640 -690 -1,670 ------1,330 ----1,970 ---1,890 ------->2,000 ------------1,820 480 320 --630 620 >2,000 1,000 >2,000 >2,000 >2,000 >2,000 ->2,000 >2,000 510 >2,000 1,110 460 770 980 540 ---395 570 400 206 585 260 510 --450 >2,000 460 880 ----585 >2,000 2,100 --------1,415 260 478 228 202 1,410 ---->2,000 >2,000 --970 434 -910 620 >2,000 1,360 680 530 290 290 444 >2,000 680 ---370 270 50 800 -----680 340 --310 306 -452 -428 ->2,000 --280 330 595 444 228 --600

North-dd 41.8361 41.8364 41.8381 41.8172 41.8256 40.8047 40.8047 40.8086 40.8075 40.8072 40.8053 40.8033 40.8036 40.9386 41.1300 41.1286 41.1269 41.1250 41.1228 41.1239 41.1250 41.3167 41.3211 41.3214 41.3194 41.3092 41.1250 41.3078 40.5250 40.5189 40.5161 40.5161 40.5183 40.5169 40.5169 40.5578 40.3661 40.3658 40.3661 40.3644 40.5811 40.5817 40.5672 40.5667 40.5667 40.5667 40.5661 41.0166 40.9842 40.9838 40.9831 40.9686 40.6656 40.6650 40.6694 40.6681 40.6575 40.6719 40.6650 40.6683 40.7686 41.2947 41.2947 41.3014 41.3603 41.3594 40.6028 40.5433 40.5406 40.5400 40.5422 40.5439 40.5433 40.5431 40.5428 40.5433 40.5442 40.5442 40.5436 40.5425 40.5422 40.5425 40.5444 40.4300 40.4289 40.4278 40.1258 40.1197 40.1303 40.1289 40.1344 40.1333 40.1650 40.1631 40.1619 40.1500 40.0869 40.2511 40.2472 40.2472 40.4464 40.4467 40.4536 40.4644 40.4694 40.4664 40.4681 40.4544 40.4444 40.4431 40.4361 40.4269 40.4308 40.4394 40.4367 40.2488 40.2531 40.2525 40.2536 40.2517 40.2517 40.2489 40.2475 40.2472 40.2503 40.2481 40.2503 40.2656 40.2603 40.2603 40.2583 40.2828 40.2828 40.2850 40.2853 40.0644 40.0636 40.0631 40.0636 40.2925 40.2917 40.2894 40.2867 40.2850 40.2847 40.2839 40.2850 40.2847 40.2842 40.2944 40.2842 40.2889 40.5014 40.4997 40.4997 40.5008 40.5003 40.4981 40.4994 40.5019 40.5011 40.5014 40.5017 40.5017 40.5694 40.5689 40.5692 40.5700 40.5572 40.5564 40.5614 40.5631 40.5547 40.5547 40.5553 40.5550 40.5558 40.5569 40.5558 40.5578 40.5522 40.5542 40.5528 40.5486 40.6028 40.6128 40.6125 40.6094 40.4228 40.4153 40.4156 40.4150 40.4242 40.4356 40.4328 40.4272 40.4264 40.4264 40.4264 40.4261 40.4272 40.4269 40.4263 41.1875 41.2047 41.2058 41.0969 41.0969 41.0967 41.0967 41.0986 41.0986 41.0983 41.0983 41.0972 41.0950 41.0950 41.0886 41.0903 41.8367 41.8367 41.8375 41.8375 41.8422 41.8378 40.5486 40.5483 40.5483 40.5497 40.5547 40.5556 40.5678 40.5678 40.5511 40.5825 40.6131 40.4289 40.4272 40.4269 40.4214 40.4239 40.4267 40.4428 40.4428 41.1308 41.1269 39.7892 39.4656 39.4614 39.4539 39.4125 39.4122 39.4208 39.4556 39.7856 39.7867 39.7889 39.7889 39.7892 39.7892 39.7894 39.7864 41.1300 41.1300 41.1300 41.1294 41.1286 41.1286 41.1286 41.1281 41.1269 41.1269 41.1231 41.1236 41.1239 41.1239 41.1308 41.3267 41.3267 41.3267 40.6719

West-dd 117.5739 117.5742 117.5736 117.6317 117.5900 117.4939 117.4936 117.5289 117.5233 117.5225 117.4981 117.4936 117.4961 116.0364 116.0072 116.0067

Site desc Mine drainage at collapsed portal, National mine Sulfide-oxide dump, materials from National mine tunnel Sulfide tailings, medium gray, from upper impoundment, National mill Spring-fed creek, SW of Birthday mine and mill Birthday mill tailings, green Ponded water in fairly recent cut into skarn copper zone Adelaide skarn waste dump Adelaide Crown upper pit, typical sample of oxide ore Adelaide Crown heap, crushed oxide ore Ponded water on waste dump bench, Adelaide Crown Adelaide smelter (skarn ores?) Gold Run creek east of all mines Adelaide skarn deposit, shaft dump Swales Mountain, dump, rich in jarosite/limonite Tributary to Coon Creek (Rip Van Winkle mine area), below tailings impound Coon Creek main stem, west of four tailings impoundments 116.0056 Rip Van Winkle mill tailings, largest impoundment, gray 116.0028 Coon Creek flowing across first tailings impoundment 116.0006 Sulfide dump in chert-shale, Rip Van Winkle portal (mill level) 116.0028 Dark gray mill tailings, sulfidic, at Rip Van Winkle mill 116.0025 Seep from tailings; creates red Fe oxide when mixing with Coon Creek 116.2306 Tuscarora, NW, Sulfide-oxide dump 116.2328 Gray sulfidic dump, propylitic alt. andesite(?) 116.2322 Ocher sulfide-oxide dump, partly oxidized, in andesite? 116.2214 Large dump, recent dozing, ocher, py-ser alt andesite 116.2194 Dexter mine, qtz-oxide ore on leach pad 116.0025 Repeat sample (not split), seep from tailings, Rip Van Winkle 116.2172 Stream, SE of Tuscarora and pit lake 115.9981 Tan mill tailings 116.0078 Mendota mine dump, red gossan material 116.0106 Porous red gossan 116.0106 Soft earthy limonite part of gossan 116.0194 Veins in porphyry, Cu oxide 116.0142 Delmar mine dump, skarn copper 116.0103 Crushed stockpile, pink rock 116.0308 Ferdelford Creek in brown siltite and chert 116.2628 Modarelli iron mine, hematite in pit 116.2628 Modarelli iron mine, cutting red hematite ore 116.2608 Modarelli ore bin, hematite 116.2597 Creek east of Modarelli mine 116.2658 Barth iron stockpile, random picks 116.2656 Barth iron stockpile, ground, darker gray 116.2519 Dark dump material, high Mn-barite 116.2561 Onandoga dump, lower, dark Mn oxide 116.2561 Onandoga dump, lower, dark Mn oxide, typical sample,