area
(sq. miles) | county
count | state
count | span
(miles) | span center | span end 1 | span end 2 |
| 1 | 144844 | 1 | 27 | 1 | 5 | 1 | 689 | Navajo-AZ
(34.38, 110.31) | Otero-NM
(32.00, 104.85) | Beaver-UT
(38.57, 114.05) |
| 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 | 10281 | 3 | 6 | 3 | 2 | 3 | 230 | Huerfano-CO
(37.57, 104.81) | Taos-NM
(36.01, 105.53) | El Paso-CO
(39.13, 104.05) |
| 4 | 10200 | 4 | 2 | 4 | 1 | 4 | 157 | Siskiyou-CA
(41.21, 122.44) | Shasta-CA
(40.45, 121.33) | Siskiyou-CA
(41.99, 123.54) |
| 5 | 4741 | 8 | 1 | 4 | 1 | 5 | 149 | Los Angeles-CA
(33.84, 118.27) | Los Angeles-CA
(32.76, 118.45) | Los Angeles-CA
(34.82, 117.67) |
| 6 | 3116 | 4 | 2 | 4 | 1 | 6 | 123 | Whatcom-WA
(48.69, 122.03) | Whatcom-WA
(49.00, 123.32) | Whatcom-WA
(48.72, 120.65) |
| 7 | 2594 | 4 | 2 | 4 | 1 | 10 | 76 | Park-CO
(39.11, 105.85) | Lake-CO
(39.30, 106.50) | Park-CO
(38.70, 105.33) |
| 8 | 2415 | 4 | 2 | 4 | 1 | 8 | 76 | Clackamas-OR
(45.38, 122.10) | Clackamas-OR
(45.13, 122.79) | Hood River-OR
(45.70, 121.44) |
| 9 | 2196 | 8 | 1 | 4 | 1 | 9 | 76 | Snohomish-WA
(48.05, 121.72) | Snohomish-WA
(48.17, 120.91) | Snohomish-WA
(47.78, 122.44) |
| 10 | 1806 | 8 | 1 | 4 | 1 | 7 | 77 | Pierce-WA
(47.10, 122.12) | Pierce-WA
(47.40, 122.80) | Pierce-WA
(46.79, 121.44) |
| 11 | 1168 | 8 | 1 | 4 | 1 | 11 | 64 | Bernalillo-NM
(35.05, 106.67) | Bernalillo-NM
(35.22, 107.20) | Bernalillo-NM
(34.87, 106.15) |
| 12 | 803 | 8 | 1 | 4 | 1 | 12 | 50 | Contra Costa-CA
(37.93, 121.98) | Contra Costa-CA
(37.85, 121.53) | Contra Costa-CA
(37.97, 122.44) |