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 | 8349 | 1 | 5 | 1 | 1 | 2 | 163 | Wasatch-UT (39.99, 111.09) | Duchesne-UT (40.81, 109.98) | Sanpete-UT (39.05, 112.01) | 31 | Duchesne-UT (40.28, 110.56) | Utah-UT (39.90, 110.86) | Uintah-UT (40.28, 109.98) | Summit-UT (40.59, 110.98) |
2 | 8064 | 1 | 5 | 1 | 1 | 1 | 177 | King-WA (47.22, 121.70) | Kittitas-WA (46.80, 119.93) | Mason-WA (47.61, 123.51) | 34 | King-WA (47.29, 122.03) | Thurston-WA (47.12, 122.70) | Yakima-WA (47.08, 121.38) | Snohomish-WA (47.78, 122.02) |
3 | 4227 | 7 | 1 | 1 | 1 | 5 | 102 | Teton-WY (43.97, 110.67) | Teton-WY (43.38, 110.06) | Teton-WY (44.67, 111.06) | 25 | Teton-WY (43.71, 110.55) | Sublette-WY (43.38, 110.34) | Fremont-WY (43.71, 110.05) | Teton-ID (43.71, 111.05) |
4 | 3300 | 7 | 1 | 1 | 1 | 8 | 94 | Iron-UT (37.88, 113.27) | Iron-UT (38.15, 112.48) | Iron-UT (37.60, 114.05) | 22 | Iron-UT (37.83, 113.10) | Washington-UT (37.53, 113.25) | Garfield-UT (37.81, 112.69) | Beaver-UT (38.15, 113.09) |
5 | 3116 | 3 | 2 | 1 | 1 | 3 | 123 | Whatcom-WA (48.69, 122.03) | Whatcom-WA (49.00, 123.32) | Whatcom-WA (48.72, 120.65) | 12 | Whatcom-WA (48.82, 121.25) | Skagit-WA (48.64, 121.25) | Canada (49.00, 121.25) | Skagit-WA (48.64, 121.25) |
6 | 2812 | 7 | 1 | 1 | 1 | 7 | 95 | Park-MT (45.54, 110.42) | Park-MT (46.19, 110.78) | Park-MT (45.00, 109.80) | 18 | Park-MT (45.25, 110.59) | Gallatin-MT (45.35, 110.92) | Park-WY (44.99, 110.59) | Sweet Grass-MT (45.25, 110.23) |
7 | 2786 | 7 | 1 | 1 | 1 | 4 | 112 | Pennington-SD (44.12, 102.99) | Pennington-SD (44.51, 102.00) | Pennington-SD (43.85, 104.06) | 16 | Pennington-SD (43.92, 102.33) | Meade-SD (44.14, 102.39) | Shannon-SD (43.69, 102.34) | Jackson-SD (43.92, 102.02) |
8 | 2476 | 7 | 1 | 1 | 1 | 9 | 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) |
9 | 2346 | 7 | 1 | 1 | 1 | 6 | 97 | Maui-HI (20.92, 156.64) | Maui-HI (21.11, 157.36) | Maui-HI (20.71, 155.93) | 14 | Maui-HI (20.76, 156.29) | Pacific Ocean (20.58, 156.19) | Pacific Ocean (20.92, 156.15) | Pacific Ocean (20.71, 156.50) |
10 | 2260 | 3 | 2 | 1 | 1 | 10 | 77 | Cache-UT (41.62, 111.60) | Cache-UT (42.00, 112.17) | Rich-UT (41.21, 111.10) | 20 | Cache-UT (41.71, 111.43) | Bear Lake-ID (42.00, 111.44) | Weber-UT (41.42, 111.51) | Lincoln-WY (41.71, 111.05) |
11 | 635 | 3 | 2 | 1 | 1 | 12 | 42 | Madison-VA (38.53, 78.31) | Page-VA (38.82, 78.39) | Madison-VA (38.23, 78.22) | 8 | Page-VA (38.59, 78.48) | Rappahannock-VA (38.63, 78.34) | Shenandoah-VA (38.64, 78.62) | Greene-VA (38.48, 78.45) |
12 | 501 | 3 | 2 | 1 | 1 | 11 | 42 | Union-GA (34.82, 83.85) | Union-GA (34.65, 84.16) | Towns-GA (34.99, 83.55) | 9 | Union-GA (34.86, 83.96) | Fannin-GA (34.89, 84.11) | Lumpkin-GA (34.74, 83.94) | Clay-NC (34.99, 83.96) |