National Register information
Note: The following information comes from the NRHP database and has not been verified.
- Status
- Posted to the National Register of Historic Places on March 7, 1973
- Reference number
- 73001885
- Areas of significance
- Industry; Engineering; Invention
- Level of significance
- State
- Evaluation criteria
- A - Event; C - Design/Construction
- Property type
- District
- Historic function
- Extractive facility
- Current function
- Museum
- Periods of significance
- 1900-1924; 1875-1899
- Number of properties
- Contributing buildings: 5
Contributing structures: 1
Contributing objects: 31