area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 158295 | 1 | 34 | 1 | 5 | 1 | 811 | Navajo-AZ (35.85, 110.19) | Imperial-CA (32.62, 116.11) | El Paso-CO (39.13, 104.05) |
2 | 97074 | 2 | 12 | 2 | 3 | 2 | 584 | Nye-NV (38.95, 116.01) | Box Elder-UT (42.00, 112.16) | Tulare-CA (35.79, 119.54) |
3 | 10200 | 3 | 2 | 3 | 1 | 3 | 157 | Siskiyou-CA (41.21, 122.44) | Shasta-CA (40.45, 121.33) | Siskiyou-CA (41.99, 123.54) |
4 | 4741 | 7 | 1 | 3 | 1 | 4 | 149 | Los Angeles-CA (33.84, 118.27) | Los Angeles-CA (32.76, 118.45) | Los Angeles-CA (34.82, 117.67) |
5 | 3116 | 3 | 2 | 3 | 1 | 5 | 123 | Whatcom-WA (48.69, 122.03) | Whatcom-WA (49.00, 123.32) | Whatcom-WA (48.72, 120.65) |
6 | 2594 | 3 | 2 | 3 | 1 | 9 | 76 | Park-CO (39.11, 105.85) | Lake-CO (39.30, 106.50) | Park-CO (38.70, 105.33) |
7 | 2415 | 3 | 2 | 3 | 1 | 7 | 76 | Clackamas-OR (45.38, 122.10) | Clackamas-OR (45.13, 122.79) | Hood River-OR (45.70, 121.44) |
8 | 2196 | 7 | 1 | 3 | 1 | 8 | 76 | Snohomish-WA (48.05, 121.72) | Snohomish-WA (48.17, 120.91) | Snohomish-WA (47.78, 122.44) |
9 | 1806 | 7 | 1 | 3 | 1 | 6 | 77 | Pierce-WA (47.10, 122.12) | Pierce-WA (47.40, 122.80) | Pierce-WA (46.79, 121.44) |
10 | 1168 | 7 | 1 | 3 | 1 | 10 | 64 | Bernalillo-NM (35.05, 106.67) | Bernalillo-NM (35.22, 107.20) | Bernalillo-NM (34.87, 106.15) |
11 | 803 | 7 | 1 | 3 | 1 | 11 | 50 | Contra Costa-CA (37.93, 121.98) | Contra Costa-CA (37.85, 121.53) | Contra Costa-CA (37.97, 122.44) |