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About the Dewey County, South Dakota outline, lakes, and rivers map
Customize this Dewey County, South Dakota outline, lakes, and rivers map with water features including Lake Oahe and rivers. Style the border, water, and background independently to match your project.
Export the finished Dewey County, South Dakota map as SVG, PNG, or PDF for presentations, reports, websites, classroom materials, or print.

Map facts
- Geography
- Dewey is represented as a county in South Dakota.
- Administrative hierarchy
- North America → South Dakota → Dewey
- Map extent
- Longitude -101.5009° to -100.2602°; latitude 44.7472° to 45.4729°
- Water features
- 1 named lake and river geometry included
- Source
- Natural Earth base geography, modified by CustomAtlas
