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| Table 4-14 | |
| Wetland Losses, in Idaho, the Region, and the U.S., 1780s-1980s | |
| Surface Area (acres) | Wetlands (acres) | |||||||
| Circa 1780s | Circa 1980s | |||||||
| Land | Water | Total | Estimates of Original Wetlands | % Surface Area | Estimates of Existing Wetlands | % Surface Area | % Wetlands Lost | |
| Idaho | 52,906,880 | 563,200 | 53,470,080 | 877,000 | 1.6 | 385,700 | 0.7 | -56 |
| Alaska | 362,516,480 | 12,787,200 | 375,303,680 | 170,200,000 | 45.3 | 170,000,000 | 45.3 | -0.1 |
| Montana | 93,185,920 | 982,400 | 94,168,320 | 1,147,000 | 1.2 | 840,300 | 0.9 | -27 |
| Nevada | 70,328,960 | 416,640 | 70,745,600 | 487,350 | 0.7 | 236,350 | 0.3 | -52 |
| Oregon | 61,573,760 | 494,080 | 62,067,840 | 2,262,000 | 3.6 | 1,393,900 | 2.2 | -38 |
| Utah | 52,723,840 | 1,622,400 | 54,346,240 | 802,000 | 1.5 | 558,000 | 1 | -30 |
| Washington | 42,664,320 | 978,560 | 43,642,880 | 1,350,000 | 3.1 | 938,000 | 2.1 | -31 |
| Wyoming | 62,259,840 | 405,120 | 62,664,960 | 2,000,000 | 3.2 | 1,250,000 | 2 | -38 |
| U.S. | 2,266,154,880 | 47,462,400 | 2,313,617,280 | 391,388,438 | - | 274,426,114 | 11.9 | -30 |
| Source: | T. E. Dahl, Wetland Losses in the United States: 1780s to 1980s (Washington, D.C.: U.S. Fish & Wildlife Service, 1990). |
Compiled by: Diane Prorak, data input assisted by:
Robert Anton-Erik
Contact: Lily Wai
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