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 | 26304 | 1 | 10 | 1 | 1 | 1 | 261 | Chelan-WA (47.78, 121.08) | Yakima-WA (46.04, 119.87) | Whatcom-WA (49.00, 123.32) | 55 | Snohomish-WA (48.21, 121.18) | Douglas-WA (47.75, 120.21) | Canada (49.00, 121.17) | Island-WA (48.07, 122.34) |
| 2 | 15068 | 2 | 2 | 1 | 1 | 2 | 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) |
| 3 | 11209 | 2 | 2 | 1 | 1 | 3 | 211 | Douglas-OR (42.94, 122.49) | Klamath-OR (41.99, 120.88) | Douglas-OR (43.86, 124.16) | 29 | Klamath-OR (42.42, 121.72) | Jackson-OR (42.42, 122.29) | Siskiyou-CA (42.00, 121.73) | Lake-OR (42.75, 121.35) |
| 4 | 8894 | 7 | 1 | 1 | 1 | 6 | 138 | White Pine-NV (39.41, 114.93) | White Pine-NV (40.13, 115.83) | White Pine-NV (38.68, 114.05) | 46 | White Pine-NV (39.45, 114.92) | Nye-NV (38.90, 115.41) | Millard-UT (39.45, 114.05) | Elko-NV (40.12, 114.91) |
| 5 | 6466 | 2 | 2 | 1 | 1 | 4 | 155 | Lincoln-MT (48.07, 115.10) | Sanders-MT (47.14, 114.19) | Lincoln-MT (49.00, 116.05) | 27 | Lincoln-MT (48.48, 115.46) | Flathead-MT (48.23, 115.02) | Flathead-MT (48.57, 114.89) | Bonner-ID (48.48, 116.05) |
| 6 | 5072 | 7 | 1 | 1 | 1 | 9 | 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) |
| 7 | 4938 | 7 | 1 | 1 | 1 | 7 | 111 | Custer-ID (44.20, 114.32) | Custer-ID (43.80, 113.36) | Custer-ID (44.61, 115.28) | 26 | Custer-ID (44.26, 114.23) | Blaine-ID (43.89, 114.29) | Lemhi-ID (44.50, 113.83) | Lemhi-ID (44.59, 114.48) |
| 8 | 4227 | 7 | 1 | 1 | 1 | 8 | 102 | Teton-WY (43.97, 110.67) | Teton-WY (43.38, 110.06) | Teton-WY (44.67, 111.06) | 25 | Teton-WY (43.71, 110.55) | Sublette-WY (43.38, 110.34) | Fremont-WY (43.71, 110.05) | Teton-ID (43.71, 111.05) |
| 9 | 4102 | 2 | 2 | 1 | 1 | 5 | 146 | Linn-OR (44.58, 121.82) | Linn-OR (44.33, 123.25) | Jefferson-OR (44.82, 120.37) | 18 | Linn-OR (44.49, 122.47) | Lane-OR (44.25, 122.33) | Marion-OR (44.75, 122.50) | Lane-OR (44.27, 122.65) |
| 10 | 3248 | 7 | 1 | 1 | 1 | 11 | 83 | Duchesne-UT (40.31, 110.41) | Duchesne-UT (40.81, 109.98) | Duchesne-UT (39.81, 110.86) | 24 | Duchesne-UT (40.16, 110.44) | Carbon-UT (39.81, 110.44) | Uintah-UT (40.16, 109.98) | Wasatch-UT (40.16, 110.90) |
| 11 | 2415 | 2 | 2 | 1 | 1 | 12 | 76 | Clackamas-OR (45.38, 122.10) | Clackamas-OR (45.13, 122.79) | Hood River-OR (45.70, 121.44) | 20 | Clackamas-OR (45.17, 122.25) | Marion-OR (45.02, 122.60) | Marion-OR (44.89, 122.25) | Multnomah-OR (45.46, 122.25) |
| 12 | 2045 | 7 | 1 | 1 | 1 | 10 | 94 | Clallam-WA (47.91, 123.60) | Jefferson-WA (47.88, 122.60) | Jefferson-WA (47.87, 124.61) | 12 | Jefferson-WA (47.70, 123.74) | Mason-WA (47.61, 123.51) | Clallam-WA (47.88, 123.75) | Grays Harbor-WA (47.52, 123.74) |