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MINNESOTA: Wadena County; Nimrod, 7 mi SE

NEW MEXICO: Lincoln County; Corona, 10 mi SW; Red Cloud Canyon; 34.184, -105.715; 2188 m

WASHINGTON: Okanogan County; Winthrop, 12 mi NE; Cub Creek, forest road 52; 48.571, -120.256; ~3000 ft

NEVADA: Elko County; Jarbidge, ~5 mi E; edge of Jarbidge Wilderness [41.8907 / -115.3743]; 41.891, -115.374; 7700 ft

CALIFORNIA: Riverside County; San Jacinto Mountains, Fuller Mill Creek at Pine Wood; 33.811, -116.746; 5850 ft

NEVADA: Clark County; Lake Mead National Recreation Area - Overton Wildlife Management Area [36°30.82'N, 114°24.80' W]; 36.517, -114.417

MONTANA: Valley County; Fort Peck

SOUTH DAKOTA: Lawrence County; Spearfish, 1.5 mi SW; Higgins Gulch; 44.483, -103.933; 4000 ft

SOUTH DAKOTA: Lawrence County; Spearfish; a few miles northeast of town; 44.738, -104.058; 4000 ft

ARGENTINA: Provincia de Salta; Joaquín V. González, 36 km NE; Route 41

NEVADA: Nye County; Nevada Test Site; Frenchman Flat

NEVADA: Lincoln County; Kane Springs Wash; 36.967, -114.976; 3100 ft

NEVADA: Nye County; Nevada Test Site, Area 7x9 Border [37°07'N 116°03'W]; 37.117, -116.05; 3500 ft

TEXAS: Padre Island

ALBERTA: Clearwater; Rocky Mountain House; Crimson Lake

OREGON: Klamath County; Merrill, 6 mi N; Stukel Mountain; 42.11, -121.62; 5200 ft

PANAMA: Provincia de Chiriquí; Puerto Armuelles, 14 km NW; Burica Peninsula; 8.205, -82.878; 50 m

GUATEMALA: Departamento de Huehuetenango; Soloma, 1 mi E; 7200 ft

NEVADA: Clark County; Lake Mead National Recreation Area

FLORIDA: Broward County; Fort Lauderdale; sea level

TEXAS: Cameron County; south of Brownsville near Rio Grande; Sabal Palms Audubon Sanctuary; sea level

OREGON: Douglas County; Reedsport, 9 mi SE; Benson Ridge Road; 43.583, -124.018; 1171 ft

NEVADA: Elko County; Shanty Town, 2 mi N; Ruby Lake National Wildlife Refuge [40°12.13'N, 115°29.38'W]; 40.202, -115.49; 6000 ft

ICELAND; Snaefellsnes

FLORIDA: Leon County; Tall Timbers Research Station

UTAH: Box Elder County; Bear River Road

GUATEMALA: Departamento de Huehuetenango; Soloma, 2 mi W; 7600 ft

ARGENTINA: Provincia de Tucumán; Departamento Trancas; Tapia, 4 km E; -26.583, -65.267; 750 m

MEXICO: Sonora; Huata Bampito

OKLAHOMA: Ellis County; Arnett, 5 mi E

NEVADA: Clark County; Spring Mountains; Lovell Canyon; 36.15, -115.567; 5800 ft

UTAH: Garfield County; Panguitch, 30 km S, 20 km W; 37.6, -112.62; 8650 ft

ANTARCTICA: South Shetland Islands; King George Island; Stigant Point

ARGENTINA: Provincia de Salta; Salta, 30 km N, 5 km E; -24.507, -65.5; 1500 m

OREGON: Baker County; Haines, 6 mi N, 7 mi W; North Powder River; 44.998, -118.081; 3725 ft

OKLAHOMA: Cleveland County; Lexington

HONDURAS: Departamento de Copán; Copán Ruinas, 15 km N; 14.967, -89.15

OREGON: Lake County; Lakeview, 12.5 mi S, 16 mi E; Fifteenmile Creek; 42.004, -120.023; 5335 ft

ANTARCTICA: Palmer Archipelago; Anvers Island; Dream Island

FLORIDA: Brevard County; Melbourne Beach; sea level

NEVADA: Clark County; Spring Mountains; Clark Canyon; 8150 ft

ARGENTINA: Provincia de Tucumán; Amaicha del Valle, 8 km S, 12 km E; -26.667, -65.817; 2700 m

UTAH: Box Elder County; Mantua, 3.5 mi S; Black Mountain, Wasatch Range; 41.442, -111.962; 7400 ft

OREGON: Wasco County; Tygh Valley, 5 mi WNW; Badger Creek Road; 45.268, -121.27; 550 m

BRITISH COLUMBIA; Dease Lake; 58.358, -129.901; 982 m

OREGON: Klamath County; Keno, 9 mi SW; Ward Road; 42.07, -122.09; 4100 ft

TEXAS: Nacogdoches County; Alazon Bayou Wildlife Management Area; 31.493, -94.748; 204 ft

NORTHWEST TERRITORIES: Yellowknife; 62.501, -114.787; 171 m

NEVADA: Clark County; Searchlight, 12 mi S; Piute Wash

ALASKA: North Slope Borough; Barrow; Naval Arctic Research Laboratory, 1.5 km inland