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 | 7990 | 1 | 7 | 1 | 1 | 1 | 190 | Park-CO (39.23, 105.57) | Eagle-CO (39.92, 107.11) | El Paso-CO (38.52, 104.05) | 25 | Park-CO (39.33, 105.87) | Grand-CO (39.69, 105.95) | Chaffee-CO (39.06, 106.19) | Jefferson-CO (39.33, 105.40) |
2 | 7333 | 2 | 2 | 1 | 1 | 2 | 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) |
3 | 6193 | 4 | 1 | 1 | 1 | 3 | 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) |
4 | 3814 | 4 | 1 | 1 | 1 | 5 | 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 | 3300 | 4 | 1 | 1 | 1 | 7 | 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) |
6 | 2786 | 4 | 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) |
7 | 2478 | 2 | 2 | 1 | 1 | 6 | 100 | Mineral-CO (37.57, 107.02) | Archuleta-CO (36.99, 106.48) | Hinsdale-CO (38.15, 107.57) | 14 | Archuleta-CO (37.20, 107.23) | Mineral-CO (37.39, 107.13) | La Plata-CO (37.20, 107.48) | Rio Arriba-NM (37.00, 107.23) |
8 | 740 | 4 | 1 | 1 | 1 | 8 | 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) |
9 | 157 | 4 | 1 | 1 | 1 | 9 | 32 | Denver-CO (39.76, 104.87) | Denver-CO (39.90, 104.63) | Denver-CO (39.62, 105.11) | 3 | Denver-CO (39.74, 104.99) | Arapahoe-CO (39.71, 104.94) | Adams-CO (39.79, 104.99) | Jefferson-CO (39.74, 105.05) |