Trona CA "Bonanza Borax" detail (0622) Trona CA "Bonanza Borax" mural (0622) Trona CA (0630) Gabbs, NV mine (0695) Berlin-Ichthyosaur State Park, NV (0705) Berlin-Ichthyosaur State Park, NV (0706) Berlin-Ichthyosaur State Park, NV (0708) Berlin-Ichthyosaur State Park, NV (0711) Berlin-Ichthyosaur State Park, NV (0714) Berlin-Ichthyosaur State Park, NV (0712) Berlin-Ichthyosaur State Park, NV (0715) Berlin-Ichthyosaur State Park, NV (0716) Berlin-Ichthyosaur State Park, NV (0719) Berlin-Ichthyosaur State Park, NV (0721) Berlin-Ichthyosaur State Park, NV (0723) Berlin-Ichthyosaur State Park, NV (0724) Berlin-Ichthyosaur State Park, NV (0725) Berlin-Ichthyosaur State Park, NV (0728) Berlin-Ichthyosaur State Park, NV (0730) Berlin-Ichthyosaur State Park, NV (0732) Berlin-Ichthyosaur State Park, NV (0734) Berlin-Ichthyosaur State Park, NV (0738) Berlin-Ichthyosaur State Park, NV (0739) Berlin-Ichthyosaur State Park, NV (0742) Berlin-Ichthyosaur State Park, NV (0743) Berlin-Ichthyosaur State Park, NV (0744) Berlin-Ichthyosaur State Park, NV (0745) Atlantic City WY (#0005) Atlantic City WY (#0006) Atlantic City WY (#0008) Atlantic City WY Duncan Mine (#0009) South Pass City WY Carissa Mine (#0012) South Pass City WY Carissa Mine (#0014) South Pass City WY Carissa Mine (#0015) Flaming Gorge Simplot phosphate mine UT (#0052) Flaming Gorge Simplot phosphate mine UT (#0056) Flaming Gorge Simplot phosphate mine UT (#0058) Flaming Gorge Simplot phosphate mine UT (#0057) Flaming Gorge Simplot phosphate mine UT (#0061) Flaming Gorge Simplot phosphate mine UT (#0064) Flaming Gorge Simplot phosphate mine UT (#0063) Utah US-191 oil (#0065) Ward Charcoal Ovens circa 1995 Ward Charcoal Ovens (#0618) Ward Charcoal Ovens (#0619) Osceola, NV (#1245) Osceola, NV (#1246) Osceola, NV (#1247) Tyrone Mine, NM reclamation (# 0789) Tyrone Mine, NM reclamation (# 0790) Tyrone Mine, NM (# 0792) Silver City, NM / Chino mine (#0 800) Santa Rita, NM Chino Mine (# 0803) Santa Rita, NM Chino Mine (# 0809) Santa Rita, NM Chino Mine (# 0806) Santa Rita, NM Chino Mine (# 0810) Ludlow, CO labor monument (# 0038) Ludlow, CO labor monument (# 0039) Ludlow, CO labor monument (# 0041) Ludlow, CO labor monument (# 0043) Ludlow, CO labor monument (# 0044) Ludlow, CO labor monument (# 0046) Cokedale Historic Dist, CO slag pile (# 0055) Trona Railway (0620) Trona Railway (0619) Trona CA Searles Valley Minerals (0616) Trona CA monorail (0609) Trona, CA (0333) Palmetto, NV (0070) Palmetto, NV (0062) Palmetto, NV (0064) Palmetto, NV (0059) Palmetto, NV (0055) Palmetto, NV (0056) Gold Point, NV (0054) Gold Point, NV (0051) Gold Point, NV (0050) Gold Point, NV (0047) Gold Point, NV (0046) Gold Point, NV (0045) Gold Point, NV (0044) Miami AZ (1959) Miami AZ (1956) Globe AZ mining(1949) Globe AZ mining(1948) Globe AZ (1902) Eagle Mountain (01-25) Eagle Mountain (01-28) Pioche NV mines 1275a Caselton, NV 0516a Pioche NV mines 1296a Pioche NV mines 1292a Pioche NV Godbe smelting mill 752 Pioche NV tram 0638a Pioche, NV 0497a Pioche, NV 0493a Pioche, NV 0491a Pioche, NV 0490a Pioche NV 1780aa Pioche, NV Silver Cafe (1318) Dawson City, Yukon 557a1 Faro, Yukon Faro, Yukon Dawson City, Yukon 542a1 Edgemont, SD (0609) Edgemont, SD (0610) Edgemont, SD (0611) Aladdin, WY historic coal mine (0517) Aladdin, WY historic coal mine (0516) Aladdin, WY historic coal mine (0518) Aladdin, WY historic coal mine (0519) Aladdin, WY historic coal mine (0522) Aladdin, WY historic coal mine (0524) Aladdin, WY historic coal mine (0525) Aladdin, WY historic coal mine (0520) Stanislaus Patterson and Western RR (0563) New Idria mine (0456) New Idria mine (0434) New Idria mine (0436) New Idria mine (0438) New Idria mine (0439) New Idria mine (0441) New Idria mine (0440) New Idria mine (0443) New Idria mine (0459)