Photograph as originally submitted to this page
in the Historical Marker Database www.HMdb.org
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Photographer: Barry Swackhamer
Taken: September 14, 2020
Caption: Using Modern Mapping Technology to Help Solve a 200 Year-Old Mystery Marker
Additional Description: Captions: (upper left) Current photo from Google Earth, Approximate 1806 river channel; (Upper right, top & bottom) William Clark's 1806, Clark's campsite symbol; 1878 GLO Map.
Submitted: January 27, 2021, by Barry Swackhamer of Brentwood, California.
Database Locator Identification Number: p566059
File Size: 3.511 Megabytes
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