Example: Wetland resiliency map of the Upper Bear River floodplain in southwestern Idaho, showing a 36-year late-spring wetland surface water trend. Graphs depict trends for selected areas of map. Colors are linked to regression slopes: blue = wetter, green = stable, and yellow = drier. Satellite image of the same area mapped (right).

A science partnership between the IWJV, the University of Montana, the U.S. Geological Survey, and the U.S. Fish and Wildlife Service’s Migratory Bird Program looked at surface water changes over 35 years in 26 key waterbird landscapes in the Intermountain West.

The resulting science produced maps that will allow biologists and land managers to determine if individual wetlands are becoming drier, wetter, or have remained unchanged. These maps are available to partners for watersheds associated with key regional, international, and hemispherically import waterbird sites in the Pacific Flyway.

Access and Download Maps

Currently, maps are available for:

  • Summer Lake Basin
  • Harney Basin
  • Lake Abert
  • Tule Lake Basin
  • Goose Lake
  • Warner Valley
  • Alkali Lakes
  • Eagle Lake
  • Honey Lake
  • Pyramid Lake
  • Carson Sink
  • Walker Lake
  • Mono Lake
  • Owens Lake
  • Humboldt Sink
  • Ruby Valley
  • Great Salt Lake
  • Sevier Lake
  • Willcox Playa

Access these Wetlands Trends Maps here.