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 | 20316 | 1 | 15 | 1 | 1 | 1 | 252 | Gunnison-CO (38.55, 107.17) | Dolores-CO (37.48, 109.04) | Clear Creek-CO (39.75, 105.40) | 42 | Gunnison-CO (38.84, 106.72) | Garfield-CO (39.37, 107.11) | Delta-CO (38.84, 107.50) | Fremont-CO (38.69, 105.97) |
2 | 18671 | 5 | 1 | 1 | 1 | 4 | 214 | Coconino-AZ (35.63, 111.64) | Coconino-AZ (34.26, 110.76) | Coconino-AZ (37.00, 112.54) | 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 | 1 | 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 | 12272 | 2 | 3 | 1 | 1 | 2 | 234 | Jeff Davis-TX (30.50, 104.01) | Culberson-TX (32.00, 104.92) | Brewster-TX (28.98, 103.12) | 34 | Brewster-TX (29.88, 103.23) | Presidio-TX (29.88, 103.80) | Mexico (29.64, 102.74) | Pecos-TX (30.27, 102.87) |
5 | 7302 | 5 | 1 | 1 | 1 | 5 | 187 | Riverside-CA (33.99, 116.06) | Riverside-CA (34.08, 114.44) | Riverside-CA (33.89, 117.68) | 22 | Riverside-CA (33.75, 115.05) | Imperial-CA (33.43, 115.05) | San Bernardino-CA (34.08, 115.05) | Imperial-CA (33.43, 115.05) |
6 | 4380 | 5 | 1 | 1 | 1 | 7 | 115 | Piscataquis-ME (45.80, 69.27) | Piscataquis-ME (45.01, 69.62) | Piscataquis-ME (46.57, 68.82) | 22 | Piscataquis-ME (46.12, 69.28) | Somerset-ME (45.98, 69.68) | Penobscot-ME (46.12, 68.82) | Somerset-ME (46.12, 69.73) |
7 | 3580 | 3 | 2 | 1 | 1 | 6 | 133 | Essex-VT (44.45, 71.70) | Coos-NH (45.31, 71.08) | Grafton-NH (43.60, 72.33) | 16 | Grafton-NH (44.09, 71.71) | Carroll-NH (44.17, 71.41) | Orange-VT (44.10, 72.03) | Carroll-NH (43.89, 71.56) |
8 | 2204 | 5 | 1 | 1 | 1 | 8 | 73 | Taos-NM (36.55, 105.61) | Taos-NM (36.02, 105.51) | Taos-NM (37.00, 106.01) | 17 | Taos-NM (36.75, 105.67) | Colfax-NM (36.68, 105.37) | Costilla-CO (37.00, 105.67) | Rio Arriba-NM (36.72, 105.98) |
9 | 2130 | 5 | 1 | 1 | 1 | 9 | 67 | El Paso-CO (38.83, 104.54) | El Paso-CO (38.52, 104.05) | El Paso-CO (39.13, 105.03) | 21 | El Paso-CO (38.82, 104.55) | Elbert-CO (39.13, 104.55) | Teller-CO (38.80, 104.94) | Pueblo-CO (38.52, 104.55) |
10 | 1015 | 5 | 1 | 1 | 1 | 10 | 56 | El Paso-TX (31.69, 106.31) | El Paso-TX (32.00, 106.62) | El Paso-TX (31.39, 106.00) | 12 | El Paso-TX (31.82, 106.20) | Otero-NM (32.00, 106.20) | Mexico (31.73, 106.38) | Hudspeth-TX (31.83, 106.00) |
11 | 740 | 5 | 1 | 1 | 1 | 12 | 40 | Boulder-CO (40.10, 105.38) | Boulder-CO (39.94, 105.69) | Boulder-CO (40.26, 105.06) | 12 | Boulder-CO (40.09, 105.29) | Gilpin-CO (39.93, 105.40) | Jefferson-CO (39.91, 105.29) | Larimer-CO (40.26, 105.28) |
12 | 620 | 5 | 1 | 1 | 1 | 11 | 41 | Chittenden-VT (44.44, 73.09) | Chittenden-VT (44.16, 72.95) | Chittenden-VT (44.72, 73.23) | 11 | Chittenden-VT (44.49, 73.07) | Lamoille-VT (44.46, 72.84) | Franklin-VT (44.65, 73.02) | Essex-NY (44.47, 73.30) |