area (sq. miles) | county count | state count | span (miles) | span center | span end 1 | span end 2 |
1 | 52278 | 2 | 7 | 4 | 1 | 1 | 367 | San Bernardino-CA (35.17, 117.08) | San Diego-CA (32.62, 116.11) | Inyo-CA (37.46, 118.77) |
2 | 26808 | 4 | 2 | 4 | 1 | 2 | 256 | Coconino-AZ (35.48, 112.07) | Yavapai-AZ (33.94, 113.33) | Coconino-AZ (37.00, 110.75) |
3 | 16179 | 4 | 2 | 2 | 2 | 4 | 224 | White Pine-NV (40.05, 114.15) | Tooele-UT (41.08, 112.49) | White Pine-NV (39.16, 115.91) |
4 | 14198 | 1 | 14 | 1 | 4 | 3 | 255 | Windsor-VT (43.68, 72.32) | Berkshire-MA (42.05, 73.50) | Coos-NH (45.31, 71.08) |
5 | 4380 | 8 | 1 | 4 | 1 | 6 | 115 | Piscataquis-ME (45.80, 69.27) | Piscataquis-ME (45.01, 69.62) | Piscataquis-ME (46.57, 68.82) |
6 | 4312 | 8 | 1 | 4 | 1 | 7 | 112 | Albany-WY (41.71, 105.80) | Albany-WY (42.43, 105.28) | Albany-WY (41.00, 106.32) |
7 | 3300 | 8 | 1 | 4 | 1 | 9 | 94 | Iron-UT (37.88, 113.27) | Iron-UT (38.15, 112.48) | Iron-UT (37.60, 114.05) |
8 | 3193 | 3 | 4 | 2 | 2 | 5 | 119 | Ulster-NY (41.69, 74.28) | Greene-NY (42.46, 73.78) | Sussex-NJ (40.91, 74.77) |
9 | 2786 | 8 | 1 | 4 | 1 | 8 | 112 | Pennington-SD (44.12, 102.99) | Pennington-SD (44.51, 102.00) | Pennington-SD (43.85, 104.06) |
10 | 1239 | 8 | 1 | 4 | 1 | 10 | 58 | Santa Cruz-AZ (31.54, 110.89) | Santa Cruz-AZ (31.43, 111.37) | Santa Cruz-AZ (31.73, 110.45) |
11 | 1175 | 8 | 1 | 4 | 1 | 11 | 52 | Cache-UT (41.71, 111.83) | Cache-UT (41.42, 111.52) | Cache-UT (42.00, 112.17) |
12 | 833 | 8 | 1 | 4 | 1 | 13 | 43 | Susquehanna-PA (41.82, 75.80) | Susquehanna-PA (42.00, 76.15) | Susquehanna-PA (41.64, 75.46) |
13 | 726 | 4 | 2 | 4 | 1 | 12 | 46 | Northampton-PA (40.75, 75.46) | Northampton-PA (40.87, 75.05) | Lehigh-PA (40.68, 75.89) |
14 | 635 | 4 | 2 | 4 | 1 | 14 | 42 | Madison-VA (38.53, 78.31) | Page-VA (38.82, 78.39) | Madison-VA (38.23, 78.22) |
15 | 494 | 8 | 1 | 4 | 1 | 15 | 40 | New Castle-DE (39.56, 75.61) | New Castle-DE (39.83, 75.47) | New Castle-DE (39.30, 75.76) |
16 | 477 | 8 | 1 | 4 | 1 | 16 | 35 | Nelson-VA (37.79, 78.89) | Nelson-VA (38.05, 78.84) | Nelson-VA (37.54, 78.83) |
17 | 435 | 8 | 1 | 4 | 1 | 18 | 30 | Providence-RI (41.87, 71.58) | Providence-RI (42.01, 71.80) | Providence-RI (41.78, 71.32) |
18 | 383 | 8 | 1 | 4 | 1 | 17 | 32 | Lake-CO (39.22, 106.36) | Lake-CO (39.38, 106.14) | Lake-CO (39.06, 106.58) |
19 | 313 | 8 | 1 | 4 | 1 | 19 | 28 | Yancey-NC (35.89, 82.33) | Yancey-NC (36.08, 82.40) | Yancey-NC (35.70, 82.26) |