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Glaciers of the American West

Summary

This is one component of a database of glacial extent for the American West. The purpose of this project is to collect and distribute data concerning the location of and changes in glacial extent over the historic period. Glaciers are found in the states of Washington, Oregon, California, Montana, Wyoming, and Colorado, and perhaps in Nevada, Utah, and Idaho. We have three motivations for this project. First, glaciers are rapidly shrinking due to climate warming. This is true not only for the American West, but for most other regions of the world. Perhaps glaciers are the clearest expression of climate change. Second, assessment of glacier cover and its change is importance to regional stream flow and global sea level. Understanding [...]

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Purpose

These data were compiled for public use from the USGS 1:100,000 scale digital line graphs and digital raster graphics. While there are no explicit constraints on the use of the data, please exercise appropriate judgement in the use and interpretation of these data. Public domain data from Portland State University are freely redistributable with proper metadata and source attribution.

Map

Spatial Services

ScienceBase WMS

Communities

  • LC MAP - Landscape Conservation Management and Analysis Portal
  • North Pacific Landscape Conservation Cooperative

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