National Register of Historic Places
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