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 | 541774 | 1 | 132 | 1 | 8 | 1 | 1417 | Iron-UT (38.12, 113.21) | Lane-OR (44.28, 124.12) | Culberson-TX (31.11, 104.10) | 229 | Mineral-NV (38.67, 118.29) | Malheur-OR (42.00, 118.20) | Pacific Ocean (36.94, 121.87) | Millard-UT (38.75, 114.05) |
2 | 18426 | 5 | 3 | 4 | 1 | 2 | 243 | Fremont-WY (43.48, 109.25) | Fremont-WY (42.26, 107.52) | Teton-WY (44.67, 111.06) | 49 | Sublette-WY (42.98, 109.61) | Lincoln-WY (42.98, 110.59) | Sweetwater-WY (42.26, 109.62) | Hot Springs-WY (43.62, 109.17) |
3 | 13566 | 2 | 6 | 3 | 2 | 4 | 212 | Taos-NM (36.80, 105.83) | Rio Arriba-NM (36.22, 107.62) | Huerfano-CO (37.82, 104.35) | 34 | Rio Arriba-NM (36.50, 106.16) | Sandoval-NM (36.00, 106.25) | Santa Fe-NM (36.00, 106.07) | Conejos-CO (36.99, 106.16) |
4 | 12709 | 3 | 5 | 2 | 3 | 3 | 227 | Bonner-ID (48.09, 116.17) | Sanders-MT (47.14, 114.19) | Stevens-WA (49.00, 118.22) | 27 | Lincoln-MT (48.24, 115.61) | Boundary-ID (48.50, 116.05) | Shoshone-ID (47.97, 116.03) | Flathead-MT (48.23, 115.02) |
5 | 7418 | 6 | 2 | 4 | 1 | 5 | 205 | no county here (20.31, 156.07) | Maui-HI (21.25, 157.30) | Hawaii-HI (19.45, 154.77) | 33 | Hawaii-HI (19.65, 155.52) | Pacific Ocean (19.44, 155.98) | Pacific Ocean (19.79, 155.03) | Pacific Ocean (20.08, 155.29) |
6 | 7333 | 6 | 2 | 4 | 1 | 7 | 166 | Big Horn-WY (44.26, 107.30) | Big Horn-WY (45.00, 108.62) | Johnson-WY (43.50, 106.02) | 28 | Johnson-WY (43.90, 106.57) | Washakie-WY (43.82, 107.11) | Campbell-WY (43.91, 106.01) | Washakie-WY (43.91, 107.13) |
7 | 6193 | 10 | 1 | 4 | 1 | 9 | 118 | Brewster-TX (29.82, 103.30) | Brewster-TX (28.97, 103.15) | Brewster-TX (30.67, 103.44) | 34 | Brewster-TX (29.88, 103.23) | Presidio-TX (29.88, 103.80) | Mexico (29.64, 102.74) | Pecos-TX (30.27, 102.87) |
8 | 6118 | 6 | 2 | 4 | 1 | 6 | 168 | Yakima-WA (46.73, 121.32) | Pierce-WA (47.40, 122.80) | Yakima-WA (46.04, 119.87) | 26 | Yakima-WA (46.43, 120.83) | Lewis-WA (46.41, 121.39) | Klickitat-WA (46.04, 120.83) | Kittitas-WA (46.74, 120.51) |
9 | 4938 | 10 | 1 | 4 | 1 | 11 | 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) |
10 | 4104 | 3 | 5 | 4 | 1 | 10 | 118 | Lake-CO (39.27, 106.35) | Chaffee-CO (38.45, 106.01) | Eagle-CO (39.92, 107.11) | 20 | Eagle-CO (39.64, 106.49) | Grand-CO (39.91, 106.40) | Grand-CO (39.92, 106.49) | Pitkin-CO (39.36, 106.50) |
11 | 3151 | 10 | 1 | 4 | 1 | 15 | 86 | Wallowa-OR (45.56, 117.35) | Wallowa-OR (46.00, 117.98) | Wallowa-OR (45.08, 116.78) | 26 | Wallowa-OR (45.53, 117.12) | Idaho-ID (45.83, 116.78) | Union-OR (45.34, 117.58) | Idaho-ID (45.37, 116.64) |
12 | 3037 | 10 | 1 | 4 | 1 | 14 | 93 | Glacier-MT (48.74, 113.12) | Glacier-MT (48.48, 112.18) | Glacier-MT (49.00, 114.07) | 23 | Glacier-MT (48.67, 113.00) | Flathead-MT (48.55, 113.47) | Pondera-MT (48.48, 112.58) | Canada (49.00, 113.00) |
13 | 2812 | 10 | 1 | 4 | 1 | 12 | 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) |
14 | 2690 | 6 | 2 | 4 | 1 | 16 | 81 | El Paso-CO (38.83, 104.69) | Teller-CO (39.13, 105.33) | El Paso-CO (38.52, 104.05) | 21 | El Paso-CO (38.82, 104.62) | Elbert-CO (39.13, 104.62) | Fremont-CO (38.65, 104.94) | Pueblo-CO (38.52, 104.62) |
15 | 2497 | 10 | 1 | 4 | 1 | 8 | 123 | Whatcom-WA (48.87, 121.99) | 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) |
16 | 2196 | 10 | 1 | 4 | 1 | 17 | 76 | Snohomish-WA (48.05, 121.72) | Snohomish-WA (48.17, 120.91) | Snohomish-WA (47.78, 122.44) | 18 | Snohomish-WA (48.04, 121.62) | Skagit-WA (48.30, 121.58) | Skagit-WA (48.30, 121.62) | King-WA (47.78, 121.62) |
17 | 2045 | 10 | 1 | 4 | 1 | 13 | 94 | Clallam-WA (47.91, 123.60) | Jefferson-WA (47.88, 122.60) | Jefferson-WA (47.87, 124.61) | 12 | Jefferson-WA (47.70, 123.74) | Mason-WA (47.61, 123.51) | Clallam-WA (47.88, 123.75) | Grays Harbor-WA (47.52, 123.74) |
18 | 1472 | 10 | 1 | 4 | 1 | 18 | 55 | Washington-ID (44.46, 116.71) | Washington-ID (44.15, 116.36) | Washington-ID (44.84, 116.90) | 16 | Washington-ID (44.45, 116.85) | Adams-ID (44.49, 116.53) | Baker-OR (44.54, 117.15) | Malheur-OR (44.24, 116.98) |