area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 52044 | 1 | 28 | 1 | 2 | 1 | 404 | Chelan-WA (47.92, 120.13) | Grays Harbor-WA (46.79, 124.10) | Boundary-ID (49.00, 116.05) |
2 | 9555 | 3 | 2 | 3 | 1 | 2 | 177 | Shasta-CA (40.99, 122.51) | Trinity-CA (39.98, 123.54) | Siskiyou-CA (42.00, 121.45) |
3 | 4938 | 5 | 1 | 3 | 1 | 3 | 111 | Custer-ID (44.20, 114.32) | Custer-ID (43.80, 113.36) | Custer-ID (44.61, 115.28) |
4 | 3814 | 5 | 1 | 3 | 1 | 4 | 106 | Culberson-TX (31.33, 104.47) | Culberson-TX (30.66, 104.92) | Culberson-TX (32.00, 104.02) |
5 | 3373 | 3 | 2 | 3 | 1 | 5 | 94 | Larimer-CO (40.51, 105.57) | Boulder-CO (39.96, 105.05) | Larimer-CO (41.00, 106.19) |
6 | 2476 | 5 | 1 | 3 | 1 | 6 | 93 | Clallam-WA (48.18, 123.83) | Clallam-WA (48.49, 124.73) | Clallam-WA (47.87, 122.95) |
7 | 2286 | 2 | 3 | 1 | 2 | 7 | 93 | Clark-WA (45.93, 122.51) | Cowlitz-WA (46.39, 123.22) | Multnomah-OR (45.46, 121.82) |
8 | 1239 | 5 | 1 | 3 | 1 | 8 | 58 | Santa Cruz-AZ (31.54, 110.89) | Santa Cruz-AZ (31.43, 111.37) | Santa Cruz-AZ (31.73, 110.45) |
9 | 945 | 5 | 1 | 3 | 1 | 9 | 44 | Litchfield-CT (41.78, 73.24) | Litchfield-CT (42.04, 73.01) | Litchfield-CT (41.49, 73.44) |
10 | 619 | 5 | 1 | 3 | 1 | 11 | 39 | San Juan-WA (48.55, 123.08) | San Juan-WA (48.83, 123.01) | San Juan-WA (48.28, 123.25) |
11 | 494 | 5 | 1 | 3 | 1 | 10 | 40 | New Castle-DE (39.56, 75.61) | New Castle-DE (39.83, 75.47) | New Castle-DE (39.30, 75.76) |