area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 239185 | 1 | 45 | 1 | 4 | 1 | 969 | San Bernardino-CA (35.62, 115.70) | Lake-CA (39.50, 123.06) | Cochise-AZ (31.33, 109.05) |
2 | 30372 | 3 | 7 | 2 | 2 | 2 | 301 | Siskiyou-CA (41.84, 123.05) | Douglas-OR (43.86, 124.16) | Tehama-CA (39.80, 122.05) |
3 | 14199 | 6 | 2 | 5 | 1 | 6 | 176 | Fremont-WY (42.94, 109.03) | Fremont-WY (44.01, 110.05) | Fremont-WY (42.26, 107.52) |
4 | 13640 | 2 | 10 | 5 | 1 | 3 | 249 | Gunnison-CO (38.56, 107.18) | La Plata-CO (37.00, 108.38) | Clear Creek-CO (39.75, 105.40) |
5 | 8907 | 4 | 5 | 2 | 2 | 4 | 229 | Lassen-CA (40.51, 120.29) | Nevada-CA (39.01, 121.22) | Washoe-NV (41.99, 119.32) |
6 | 7418 | 6 | 2 | 5 | 1 | 5 | 205 | no county here (20.31, 156.07) | Maui-HI (21.25, 157.30) | Hawaii-HI (19.45, 154.77) |
7 | 6118 | 6 | 2 | 5 | 1 | 7 | 168 | Yakima-WA (46.73, 121.32) | Pierce-WA (47.40, 122.80) | Yakima-WA (46.04, 119.87) |
8 | 4312 | 10 | 1 | 5 | 1 | 10 | 112 | Albany-WY (41.71, 105.80) | Albany-WY (42.43, 105.28) | Albany-WY (41.00, 106.32) |
9 | 4158 | 5 | 3 | 2 | 2 | 9 | 123 | Taos-NM (36.89, 105.74) | Alamosa-CO (37.75, 106.04) | Taos-NM (36.01, 105.53) |
10 | 3300 | 10 | 1 | 5 | 1 | 11 | 94 | Iron-UT (37.88, 113.27) | Iron-UT (38.15, 112.48) | Iron-UT (37.60, 114.05) |
11 | 2497 | 10 | 1 | 5 | 1 | 8 | 123 | Whatcom-WA (48.87, 121.99) | Whatcom-WA (49.00, 123.32) | Whatcom-WA (48.72, 120.65) |
12 | 2415 | 6 | 2 | 5 | 1 | 12 | 76 | Clackamas-OR (45.38, 122.10) | Clackamas-OR (45.13, 122.79) | Hood River-OR (45.70, 121.44) |
13 | 2130 | 10 | 1 | 5 | 1 | 14 | 67 | El Paso-CO (38.83, 104.54) | El Paso-CO (38.52, 104.05) | El Paso-CO (39.13, 105.03) |
14 | 1066 | 10 | 1 | 5 | 1 | 13 | 68 | Dolores-CO (37.68, 108.47) | Dolores-CO (37.77, 107.86) | Dolores-CO (37.48, 109.04) |
15 | 740 | 10 | 1 | 5 | 1 | 15 | 47 | Custer-CO (38.09, 105.42) | Custer-CO (38.26, 105.80) | Custer-CO (37.92, 105.05) |
16 | 740 | 10 | 1 | 5 | 1 | 16 | 40 | Boulder-CO (40.10, 105.38) | Boulder-CO (39.94, 105.69) | Boulder-CO (40.26, 105.06) |