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 | 145017 | 1 | 45 | 1 | 4 | 1 | 792 | Elko-NV (40.47, 114.89) | Lake-OR (43.62, 121.33) | San Juan-UT (37.00, 109.05) | 107 | Millard-UT (39.13, 112.15) | Summit-UT (40.61, 111.55) | Lincoln-NV (38.68, 114.05) | Grand-UT (38.92, 110.18) |
2 | 26227 | 2 | 4 | 2 | 2 | 2 | 375 | Nye-NV (36.88, 117.05) | Clark-NV (35.00, 114.63) | Mono-CA (38.71, 119.59) | 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) |
3 | 15272 | 3 | 3 | 2 | 2 | 3 | 255 | Otero-NM (32.51, 105.19) | Lincoln-NM (34.35, 105.31) | Culberson-TX (30.66, 104.92) | 32 | Lincoln-NM (33.58, 105.45) | Socorro-NM (33.83, 105.92) | Chaves-NM (33.13, 105.32) | Chaves-NM (33.58, 104.89) |
4 | 2786 | 4 | 1 | 4 | 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) |
5 | 1782 | 4 | 1 | 4 | 1 | 5 | 65 | Spokane-WA (47.65, 117.43) | Spokane-WA (47.26, 117.82) | Spokane-WA (48.05, 117.04) | 18 | Spokane-WA (47.52, 117.43) | Kootenai-ID (47.52, 117.04) | Lincoln-WA (47.53, 117.82) | Whitman-WA (47.26, 117.43) |
6 | 1106 | 4 | 1 | 4 | 1 | 6 | 61 | Jefferson-ID (43.84, 112.16) | Jefferson-ID (43.63, 111.63) | Jefferson-ID (44.06, 112.69) | 15 | Jefferson-ID (43.84, 112.40) | Fremont-ID (43.97, 112.16) | Butte-ID (43.84, 112.70) | Bonneville-ID (43.63, 112.40) |
7 | 813 | 4 | 1 | 4 | 1 | 8 | 44 | Hancock-IL (40.42, 91.20) | Hancock-IL (40.64, 90.90) | Hancock-IL (40.20, 91.51) | 12 | Hancock-IL (40.44, 91.14) | Lee-IA (40.41, 91.37) | McDonough-IL (40.44, 90.91) | Lee-IA (40.48, 91.37) |
8 | 552 | 4 | 1 | 4 | 1 | 7 | 46 | Reynolds-MO (37.51, 90.85) | Iron-MO (37.74, 91.15) | Iron-MO (37.27, 90.55) | 6 | Iron-MO (37.43, 90.66) | Reynolds-MO (37.37, 90.75) | Madison-MO (37.42, 90.55) | Reynolds-MO (37.43, 90.77) |
9 | 307 | 4 | 1 | 4 | 1 | 9 | 26 | Brown-IL (39.97, 90.74) | Brown-IL (39.84, 90.57) | Brown-IL (40.10, 90.91) | 8 | Brown-IL (39.95, 90.77) | Adams-IL (39.96, 90.91) | Pike-IL (39.84, 90.77) | Schuyler-IL (40.05, 90.68) |