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 | 175800 | 2 | 32 | 2 | 5 | 2 | 788 | Coconino-AZ (36.46, 112.12) | Cochise-AZ (31.33, 109.05) | Eureka-NV (41.00, 116.59) | 108 | Maricopa-AZ (33.46, 112.51) | Navajo-AZ (34.00, 110.75) | San Bernardino-CA (34.26, 114.13) | Mexico (31.98, 113.15) |
2 | 171847 | 1 | 84 | 1 | 6 | 1 | 935 | Harney-OR (42.78, 118.61) | San Benito-CA (36.26, 121.03) | Lincoln-MT (49.00, 114.73) | 78 | Harney-OR (43.53, 119.78) | Jefferson-OR (44.56, 120.39) | Klamath-OR (42.74, 120.88) | Malheur-OR (43.54, 118.23) |
3 | 30154 | 5 | 5 | 7 | 1 | 3 | 327 | Kern-CA (35.12, 118.30) | Inyo-CA (37.46, 117.83) | Los Angeles-CA (32.75, 118.43) | 56 | Kern-CA (35.48, 118.62) | Kings-CA (35.79, 119.54) | San Luis Obispo-CA (35.08, 119.47) | San Bernardino-CA (35.45, 117.63) |
4 | 17390 | 3 | 11 | 3 | 2 | 6 | 229 | Cassia-ID (42.01, 113.02) | Lincoln-ID (43.20, 114.59) | Morgan-UT (40.79, 111.53) | 37 | Box Elder-UT (41.46, 111.99) | Oneida-ID (42.00, 112.11) | Tooele-UT (41.08, 112.49) | Summit-UT (41.05, 111.54) |
5 | 17024 | 9 | 3 | 3 | 2 | 4 | 248 | Carbon-WY (41.34, 107.20) | Albany-WY (42.43, 105.28) | Moffat-CO (40.22, 109.05) | 50 | Carbon-WY (41.72, 106.24) | Jackson-CO (41.00, 106.25) | Platte-WY (41.72, 105.28) | Natrona-WY (42.43, 106.24) |
6 | 11878 | 4 | 6 | 7 | 1 | 5 | 230 | Cascade-MT (47.01, 111.34) | Chouteau-MT (48.14, 109.53) | Silver Bow-MT (45.85, 113.08) | 28 | Chouteau-MT (47.84, 110.40) | Cascade-MT (47.52, 110.77) | Fergus-MT (47.71, 109.84) | Hill-MT (48.22, 110.63) |
7 | 8999 | 5 | 5 | 7 | 1 | 7 | 179 | Fremont-CO (38.43, 105.46) | Saguache-CO (37.96, 107.00) | El Paso-CO (39.13, 104.05) | 25 | El Paso-CO (38.77, 104.51) | Elbert-CO (39.13, 104.51) | Fremont-CO (38.65, 104.94) | Lincoln-CO (38.78, 104.05) |
8 | 5920 | 7 | 4 | 3 | 2 | 8 | 156 | Josephine-OR (42.50, 123.94) | Coos-OR (43.61, 124.22) | Del Norte-CA (41.38, 123.66) | 29 | Josephine-OR (42.34, 123.84) | Siskiyou-CA (42.00, 123.52) | Douglas-OR (42.74, 123.72) | Pacific Ocean (42.22, 124.38) |
9 | 5072 | 12 | 1 | 7 | 1 | 11 | 101 | Hawaii-HI (19.62, 155.55) | Hawaii-HI (18.86, 155.68) | Hawaii-HI (20.32, 155.85) | 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) |
10 | 3814 | 12 | 1 | 7 | 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) |
11 | 2786 | 12 | 1 | 7 | 1 | 9 | 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) |
12 | 2476 | 12 | 1 | 7 | 1 | 12 | 93 | Clallam-WA (48.18, 123.83) | Clallam-WA (48.49, 124.73) | Clallam-WA (47.87, 122.95) | 17 | Clallam-WA (48.12, 124.33) | Jefferson-WA (47.88, 124.33) | Canada (48.35, 124.19) | Pacific Ocean (48.09, 124.69) |
13 | 2245 | 12 | 1 | 7 | 1 | 13 | 85 | Washakie-WY (43.84, 107.83) | Washakie-WY (43.50, 107.11) | Washakie-WY (44.17, 108.55) | 17 | Washakie-WY (43.92, 107.48) | Big Horn-WY (44.17, 107.48) | Hot Springs-WY (43.73, 107.72) | Johnson-WY (43.92, 107.13) |
14 | 2179 | 7 | 4 | 7 | 1 | 15 | 81 | Adams-CO (39.78, 104.42) | Arapahoe-CO (39.57, 103.71) | Broomfield-CO (39.91, 105.17) | 15 | Adams-CO (39.78, 104.43) | Weld-CO (40.00, 104.43) | Elbert-CO (39.56, 104.43) | Elbert-CO (39.56, 104.42) |
15 | 1831 | 12 | 1 | 7 | 1 | 14 | 85 | Coos-NH (44.70, 71.21) | Coos-NH (44.09, 71.34) | Coos-NH (45.31, 71.08) | 14 | Coos-NH (44.44, 71.30) | Carroll-NH (44.24, 71.25) | Oxford-ME (44.45, 71.02) | Essex-VT (44.50, 71.58) |
16 | 1579 | 10 | 2 | 7 | 1 | 16 | 71 | Jefferson-ID (43.84, 112.05) | Madison-ID (43.62, 111.40) | 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) |
17 | 1209 | 12 | 1 | 7 | 1 | 17 | 61 | Wasatch-UT (40.29, 111.16) | Wasatch-UT (40.69, 111.44) | Wasatch-UT (39.90, 110.89) | 12 | Wasatch-UT (40.38, 111.12) | Utah-UT (40.26, 111.28) | Duchesne-UT (40.38, 110.90) | Summit-UT (40.55, 111.15) |
18 | 1138 | 10 | 2 | 3 | 2 | 18 | 53 | Sevier-TN (35.66, 83.59) | Sevier-TN (36.04, 83.66) | Swain-NC (35.28, 83.68) | 12 | Sevier-TN (35.62, 83.45) | Cocke-TN (35.71, 83.28) | Blount-TN (35.62, 83.66) | Jackson-NC (35.47, 83.35) |
19 | 741 | 12 | 1 | 7 | 1 | 19 | 44 | Alpine-CA (38.63, 119.77) | Alpine-CA (38.33, 119.64) | Alpine-CA (38.93, 119.90) | 12 | Alpine-CA (38.58, 119.84) | Amador-CA (38.58, 120.07) | Tuolumne-CA (38.42, 119.75) | Mono-CA (38.61, 119.62) |
20 | 383 | 12 | 1 | 7 | 1 | 20 | 32 | Lake-CO (39.22, 106.36) | Lake-CO (39.38, 106.14) | Lake-CO (39.06, 106.58) | 8 | Lake-CO (39.18, 106.34) | Pitkin-CO (39.20, 106.49) | Chaffee-CO (39.06, 106.34) | Park-CO (39.19, 106.19) |
21 | 313 | 12 | 1 | 7 | 1 | 21 | 28 | Yancey-NC (35.89, 82.33) | Yancey-NC (36.08, 82.40) | Yancey-NC (35.70, 82.26) | 7 | Yancey-NC (35.90, 82.30) | Buncombe-NC (35.82, 82.36) | Mitchell-NC (35.95, 82.20) | Mitchell-NC (35.99, 82.25) |