200511 Eastern Hemlock (Tsuga canadensis) - USGS Forest Service Native Range Map
Digital maps of the ranges of tree species in North America compiled by Elbert Little and others
U.S. Department of the Interior
U.S. Geological Survey
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%20-%20USGS%20Forest%20Service%20Native%20Range%20Map.jpg "200511 Eastern Hemlock (Tsuga canadensis) - USDA Forest Service Native Range Map.jpg")