200511 White Spruce (Picea glauca) - 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 White Spruce (Picea glauca) - USDA Forest Service Native Range Map.jpg")