Physiographic Regions of North America
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These two maps show the physiographic regions of the United States.
Figure 4.1 Physiographic Regions of North America (U.S. Geological Survey, 2003. Public Domain).
Source: U.S. Geological Survey, pubs.usgs.gov/imap/i2720/i2720_pamphlet.pdf
This work is in the Public Domain.
Last modified: Monday, 26 September 2022, 10:38 AM