Record
About Hammer
Hammer is an unincorporated community in Roberts County, in the U.S. state of South Dakota.
This is a site record: what public sources say about Hammer, gathered in one place. We haven't written a full guide yet, so history, current access and photos are still to come. Treat the status as unknown until a guide confirms it.
Map
Where Hammer is

Historic maps
4 historic USGS maps cover Hammer
Topographic sheets from the USGS Historical Topographic Map Collection (public domain), oldest first. Older sheets often show the camp, mines and roads while the place was alive. The downloads are large map scans; USGS topoView shows them in the browser.
- 1953 Milbank sheet, 1:250,000 · GeoTIFF download
- 1958 Milbank sheet, 1:250,000 · GeoTIFF download
- 1964 Claire City sheet, 1:24,000 · GeoTIFF download
- 1979 Sisseton sheet, 1:100,000 · GeoTIFF download
Directions
Getting there
Before you go
- Many ghost town sites are on private land, active mining claims or tribal land. Check land status and ask permission.
- Roads to old townsites are often unmaintained dirt. Map apps may route over closed or impassable tracks.
- Removing artifacts from public land is illegal under federal and most state laws.
Nearby
Other sites near Hammer
Straight-line distance to other mapped sites in our South Dakota index.
- Fort Sisseton28.1 mi SW · Marshall
Sources
Sources
- ghosttowns.com, "Hammer": county, roads, climate, best time to visit, remains.
- Wikipedia, "Hammer, South Dakota": coordinates and summary.
- Wikidata Q23709363.
- USGS GNIS 1255409.
- USGS 3D Elevation Program, elevation at the coordinates.
- USGS The National Map and Historical Topographic Map Collection (public domain).