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3.4 km W (by road) Carrizal, 17 36.025' N, 99 49.590' W, 2480 m, Guerrero

Porpoise Bay, Sechelt, Canada

Sand Dunes W Curtis Station, Provo, Utah

3 mi SE Guadalupe, Zacatecas

3.43 km S, 8.42 km W Fairfield, 40 13' 45.29" N, 112 11' 20.67" W, 1611 m, Utah

5 mi E Yuma, Colorado

Miahuatlan, 1400 m, Oaxaca

9.05 km S, 3.25 km W Grantsville, 40 31' 04.63" N, 112 30' 31.32" W, 1613 m, Utah

5 mi N Lynndyl, Utah

Spring Hollow, Utah

Upper Dry Cyn, Utah

14.35 km E, 3.95 km S Steep Creek Bench, 37 54 22.25"N, 111 07' 26.05" W, 2005, Utah

3.6 km E, 2.7 km S Pitt and Page Hill, 40 35' 49.1" N, 110 58' 26.2" W, 2565 m, Utah

Upper Dry Cyn, Trough Spring, Utah

6 mi W Nadadores, Coahuila

Carey, Idaho

6.1 km SW (by road) Omiltemi, 17 32.950' N, 99 43.260' W, 2490 m, Guerrero

Parque Nacional Los Azufres, 25 km NW Ciudad Hidalgo, 3000 m, Michoacan

Rancho San Pedro el Chico, 2 km E Villa de Guadalupe, Distrito Federal

9.25 km E, 1.55 km S Steep Creek Bench, 37 55' 45.10" N, 111 10' 57.05" W, 1920 m, Utah

1 mi N Guaymas, Sonora

11 mi SE Guadalajara, Jalisco

Magdalena, El Beni, 13 14' 48.7032'' S, 64 2' 56.1258'' W, Beni

Alhuaca, 8 km NE Vicente Guerrero, Mpio. Vicente Guerrero, 18 34.231' N, 97 09.965' W, 2680 m, Puebla

Lakeside Lab

New Mexico

3.6 km E, 3.5 km S summit Ibapah Peak, 39 47' 44.90" N, 113 52' 53.55" W, 2010 m, Deep Creek Range, Utah

Geyser Pass, La Sal Mtns., Utah

Stansbury Island, 40 47.680' N, 112 31.077' W, 1553 m, Utah

9.45 km S, 2.60 km W Grantsville, 40 30' 54.33" N, 112 29' 54.48" W, 1619 m, Utah

10 km S (by road) Patzcuaro, 19 27' 35" N, 109 36' 27.3" W, 2200 m, Michoacan

Centro Ecologico, 2.5 km S (by road) Hermosillo, 29 01' 173" N, 110 56' 920" W, 250 m, Sonora

National Reaction Test Site, Idaho

Bitter Creek, 657950 E, 4382930 N 2024 m, Utah

5.8 km E, 0.8 km N Samak, 40 37' 19.2" N, 111 08' 42.3" W, 2235 m, Utah

6.15 km E, 2.25 km N Cutler Point, 37 12' 23.25" N, 112 23' 20.35" W, 1730 m, Johnson Canyon, Utah

Teopisca, 1700 m, Chiapas

3 mi N Montezuma Crk Trading Post, Utah

2.85 km E, 1.45 km S Wolverine Bench, 37 49' 29.55" N, 111 11' 48.85" W, 1697 m, Utah

5 mi E Aguascalientes, Aguascalientes, Mexico

12 mi N Chamela, Jalisco

Fort Bridger, Wyoming

7 mi E Princeton, Hwy 3, Canada

Tillamook, Oregon

3.9 km N, 1.8 km W Shingle Mill Flat, 40 46' 44" N, 111 09' 37.2" W, 2250 m, Utah

5 mi SW Fort Collins, Colorado

Horse Ridge, Utah

Deseret National Wildlife Refuge, 0.3 km E, 0.30 km N Corn Creek Springs, 36.4418 N, 115.3544 W, 910 m, Nevada

0.8 km S, 4.0 km W South Horn Mountain, 39 07' 40.90" N, 111 15' 45.95" W, 1995 m, Ferrron Canyon, Utah

10.9 km E, 2.1 km S Delle, 40 44' 28.91" N, 112 39' 04.10" W, 1290 m, Utah