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 | 28862 | 1 | 10 | 1 | 2 | 1 | 335 | Tooele-UT (40.02, 112.98) | White Pine-NV (39.16, 115.91) | Duchesne-UT (40.81, 109.98) | 51 | Tooele-UT (40.29, 112.56) | Box Elder-UT (41.00, 112.80) | Millard-UT (39.55, 112.56) | Wasatch-UT (40.45, 111.62) |
2 | 26607 | 3 | 2 | 1 | 2 | 2 | 314 | Coconino-AZ (36.60, 110.77) | Coconino-AZ (34.42, 111.55) | San Juan-UT (38.50, 109.06) | 58 | Coconino-AZ (35.91, 111.78) | Yavapai-AZ (35.26, 112.44) | Navajo-AZ (35.91, 110.75) | Mohave-AZ (36.36, 112.66) |
3 | 15068 | 3 | 2 | 3 | 1 | 3 | 224 | Inyo-CA (36.16, 117.60) | Tulare-CA (36.49, 119.57) | Inyo-CA (35.81, 115.65) | 45 | Inyo-CA (36.45, 117.66) | Kern-CA (35.80, 117.66) | Nye-NV (36.92, 117.10) | Fresno-CA (36.75, 118.37) |
4 | 10200 | 3 | 2 | 3 | 1 | 5 | 157 | Siskiyou-CA (41.21, 122.44) | Shasta-CA (40.45, 121.33) | Siskiyou-CA (41.99, 123.54) | 31 | Shasta-CA (40.89, 121.93) | Tehama-CA (40.44, 121.85) | Lassen-CA (40.91, 121.33) | Trinity-CA (41.10, 122.46) |
5 | 7675 | 3 | 2 | 3 | 1 | 4 | 215 | Lane-OR (43.93, 122.00) | Lane-OR (44.28, 124.12) | Deschutes-OR (43.61, 119.90) | 25 | Lane-OR (43.84, 122.45) | Klamath-OR (43.56, 122.12) | Linn-OR (44.21, 122.38) | Douglas-OR (43.54, 122.74) |
6 | 7177 | 3 | 2 | 3 | 1 | 7 | 148 | Custer-ID (44.02, 114.03) | Custer-ID (44.74, 115.14) | Butte-ID (43.28, 112.95) | 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) |
7 | 6297 | 3 | 2 | 3 | 1 | 6 | 154 | Mesa-CO (39.30, 108.06) | Garfield-CO (40.09, 107.04) | Mesa-CO (38.50, 109.06) | 29 | Mesa-CO (39.24, 108.52) | Rio Blanco-CO (39.65, 108.55) | Grand-UT (39.24, 109.05) | Delta-CO (38.98, 108.09) |
8 | 5730 | 3 | 2 | 3 | 1 | 9 | 117 | Iron-UT (37.58, 113.27) | Iron-UT (38.15, 112.48) | Washington-UT (37.00, 114.05) | 32 | Iron-UT (37.68, 113.46) | Kane-UT (37.54, 112.90) | Beaver-UT (38.15, 113.46) | Lincoln-NV (37.69, 114.05) |
9 | 4750 | 12 | 1 | 3 | 1 | 11 | 106 | Moffat-CO (40.62, 108.19) | Moffat-CO (41.00, 107.32) | Moffat-CO (40.22, 109.05) | 27 | Moffat-CO (40.61, 107.93) | Rio Blanco-CO (40.22, 107.93) | Routt-CO (40.54, 107.43) | Sweetwater-WY (41.00, 107.94) |
10 | 4312 | 12 | 1 | 3 | 1 | 12 | 102 | Yakima-WA (46.51, 120.69) | Yakima-WA (47.09, 121.38) | 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) |
11 | 4087 | 12 | 1 | 3 | 1 | 8 | 130 | Sublette-WY (42.45, 110.54) | Lincoln-WY (41.58, 110.05) | Lincoln-WY (43.32, 111.04) | 24 | Lincoln-WY (41.93, 110.58) | Rich-UT (41.93, 111.05) | Uinta-WY (41.58, 110.58) | Sublette-WY (42.28, 110.54) |
12 | 3814 | 12 | 1 | 3 | 1 | 10 | 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) |
13 | 3609 | 2 | 3 | 3 | 1 | 13 | 91 | Park-CO (39.00, 105.83) | Chaffee-CO (38.42, 106.25) | Park-CO (39.57, 105.40) | 24 | Park-CO (39.04, 105.83) | Jefferson-CO (39.13, 105.40) | Summit-CO (39.36, 106.02) | Fremont-CO (38.69, 105.83) |
14 | 2415 | 3 | 2 | 3 | 1 | 15 | 76 | Clackamas-OR (45.38, 122.10) | Clackamas-OR (45.13, 122.79) | Hood River-OR (45.70, 121.44) | 20 | Clackamas-OR (45.17, 122.25) | Marion-OR (45.02, 122.60) | Marion-OR (44.89, 122.25) | Multnomah-OR (45.46, 122.25) |
15 | 1919 | 12 | 1 | 3 | 1 | 16 | 75 | Sevier-UT (38.77, 111.91) | Sevier-UT (38.51, 112.52) | Sevier-UT (39.03, 111.30) | 18 | Sevier-UT (38.77, 111.83) | Wayne-UT (38.51, 111.76) | Sanpete-UT (39.03, 111.83) | Millard-UT (38.96, 112.07) |
16 | 1666 | 3 | 2 | 3 | 1 | 14 | 83 | San Juan-CO (37.88, 107.63) | Ouray-CO (38.33, 108.13) | Hinsdale-CO (37.42, 107.13) | 11 | Hinsdale-CO (37.99, 107.33) | Gunnison-CO (38.15, 107.33) | San Juan-CO (37.94, 107.53) | Mineral-CO (37.94, 107.14) |
17 | 1239 | 12 | 1 | 3 | 1 | 17 | 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) |