Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Using Modern Mapping Technology to Help Solve a 200 Year-Old Mystery Marker
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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