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 | 6956 | 1 | 4 | 1 | 2 | 1 | 171 | Spokane-WA (47.65, 117.31) | Bonner-ID (48.85, 116.79) | Whitman-WA (46.56, 118.17) | 22 | Whitman-WA (47.02, 117.49) | Garfield-WA (46.70, 117.48) | Benewah-ID (47.13, 117.04) | Adams-WA (47.02, 117.96) |
2 | 3701 | 1 | 4 | 2 | 1 | 2 | 128 | Gem-ID (43.98, 116.43) | Ada-ID (43.11, 115.98) | Washington-ID (44.84, 116.90) | 17 | Ada-ID (43.58, 116.45) | Owyhee-ID (43.53, 116.78) | Owyhee-ID (43.40, 116.68) | Boise-ID (43.76, 116.21) |
3 | 2130 | 4 | 1 | 2 | 1 | 4 | 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) |
4 | 1365 | 3 | 2 | 2 | 1 | 3 | 72 | Lincoln-ID (42.93, 114.02) | Minidoka-ID (43.20, 113.41) | Jerome-ID (42.65, 114.62) | 9 | Jerome-ID (42.68, 114.18) | Lincoln-ID (42.76, 114.05) | Lincoln-ID (42.81, 114.18) | Twin Falls-ID (42.56, 114.24) |
5 | 1086 | 4 | 1 | 2 | 1 | 5 | 61 | Rich-UT (41.59, 111.27) | Rich-UT (41.14, 111.24) | Rich-UT (42.00, 111.51) | 11 | Rich-UT (41.85, 111.25) | Bear Lake-ID (42.00, 111.26) | Cache-UT (41.80, 111.45) | Lincoln-WY (41.85, 111.05) |
6 | 862 | 4 | 1 | 2 | 1 | 6 | 46 | Polk-AR (34.45, 94.23) | Polk-AR (34.68, 93.93) | Polk-AR (34.19, 94.47) | 12 | Polk-AR (34.52, 94.14) | Howard-AR (34.35, 94.14) | Montgomery-AR (34.52, 93.93) | Scott-AR (34.69, 94.14) |
7 | 678 | 4 | 1 | 2 | 1 | 7 | 44 | Benton-OR (44.49, 123.45) | Benton-OR (44.67, 123.09) | Benton-OR (44.32, 123.82) | 9 | Benton-OR (44.47, 123.41) | Linn-OR (44.49, 123.23) | Lincoln-OR (44.47, 123.60) | Linn-OR (44.45, 123.23) |
8 | 668 | 4 | 1 | 2 | 1 | 9 | 39 | Franklin-ID (42.18, 111.81) | Franklin-ID (42.00, 112.11) | Franklin-ID (42.42, 111.60) | 10 | Franklin-ID (42.14, 111.80) | Bannock-ID (42.26, 111.90) | Cache-UT (42.00, 111.80) | Bear Lake-ID (42.19, 111.63) |
9 | 619 | 4 | 1 | 2 | 1 | 8 | 39 | San Juan-WA (48.55, 123.08) | San Juan-WA (48.83, 123.01) | San Juan-WA (48.28, 123.25) | 11 | San Juan-WA (48.60, 123.00) | Canada (48.57, 123.23) | Skagit-WA (48.60, 122.77) | Canada (48.74, 123.09) |