area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 | FGR (miles) | center county and point | county 1 and point | county 2 and point | county 3 and point |
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) | 76 | Lincoln-WA (47.89, 118.22) | Chelan-WA (47.94, 119.86) | Latah-ID (47.13, 117.04) | Canada (49.00, 118.21) |
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) | 32 | Siskiyou-CA (41.54, 122.90) | Shasta-CA (41.18, 122.50) | Jackson-OR (42.00, 122.90) | Humboldt-CA (41.37, 123.47) |
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) | 26 | Custer-ID (44.26, 114.23) | Blaine-ID (43.89, 114.29) | Lemhi-ID (44.50, 113.83) | Lemhi-ID (44.59, 114.48) |
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) | 25 | Culberson-TX (31.63, 104.49) | Eddy-NM (32.00, 104.48) | Hudspeth-TX (31.63, 104.91) | Reeves-TX (31.61, 104.06) |
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) | 24 | Larimer-CO (40.65, 105.41) | Grand-CO (40.47, 105.81) | Weld-CO (40.65, 104.94) | Albany-WY (41.00, 105.41) |
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) | 17 | Clallam-WA (48.12, 124.33) | Jefferson-WA (47.88, 124.33) | Canada (48.35, 124.19) | Pacific Ocean (48.09, 124.69) |
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) | 16 | Cowlitz-WA (46.16, 122.58) | Lewis-WA (46.39, 122.58) | Columbia-OR (46.06, 122.88) | Skamania-WA (46.16, 122.25) |
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) | 14 | Santa Cruz-AZ (31.53, 110.80) | Pima-AZ (31.73, 110.80) | Pima-AZ (31.73, 110.86) | Mexico (31.33, 110.80) |
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) | 13 | Litchfield-CT (41.73, 73.26) | Hartford-CT (41.76, 73.01) | Dutchess-NY (41.74, 73.51) | Fairfield-CT (41.65, 73.48) |
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 | San Juan-WA (48.60, 123.00) | Canada (48.57, 123.23) | Skagit-WA (48.60, 122.77) | Canada (48.74, 123.09) |
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) | 7 | New Castle-DE (39.71, 75.64) | Salem-NJ (39.65, 75.54) | Salem-NJ (39.69, 75.51) | Chester-PA (39.77, 75.74) |