Profile Across a Moving Sand Dune in the Big Bend.
Description:
Line graph showing the profile across a moving sand dune in Big Bend National Park. The x-axis, indicating the width of the sand dune, has a scale of ca. 1:240 (20 feet to the inch), and the y-axis, indicating the height on the sand dune, has a scale of ca. 1:48 (4 feet to the inch).
Date:
192X
Item Type:
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Map
Partner:
Hardin-Simmons University Library