Why Sasquatch appeared in the Washington Environmental Atlas
A page from Shaping Environmental Awareness describes publication of the 1975 Washington Environmental Atlas and its memorable Sasquatch reference.
What this record tells us
An official historical discussion of the atlas, not a biological identification or a laboratory result.
The page acknowledges the creature’s possibly mythical status. The atlas’s mention should not be represented as government confirmation of a species.
- Author / issuing body
- Martin Reuss · Historical Division, Office of the Chief of Engineers
- Source collection
- U.S. Army Corps of Engineers publication EP 870-1-10
- Checked
- November 1, 2026
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Text from this page
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Source, edition & reuse
Printed page 23, PDF page 30, selected from the full publication. Page selection and packaging changed; the scanned page is unchanged. The full agency publication remains linked above.
U.S. federal government publication; selected government-authored text page, public domain in the United States.
File verification
SHA-256 of the selected PDF: 0ae55d1448369d37313e155744708ea2020939b4c32fa4d6f3afec55c4a33dc8