National Register of Historic Places
Helvig-Olson Farm Historic District
Listed federally as Helvig--Olson Farm Historic District
Grand Mound, Clinton County, Iowa
The record
- Listed
- August 15, 2000
- Type
- Historic district
- Address
- 2008 260th St., Grand Mound
- County
- Clinton
- State
- Iowa
- Period of significance
- 1850 to 1949
- Contributing resources
- 7 buildings, 1 site
- Coordinates
- 41.80406, -90.70152
- Reference number
- 00000924
Slide toward Today to fade the historical sheet and see the modern map underneath.
David Rumsey Map Collection, Stanford LibrariesUSGS Historical Topographic Map CollectionBarry Lawrence Ruderman Map Collection, Stanford LibrariesBarry Lawrence Ruderman Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford Libraries