National Register of Historic Places
Long Green Valley Historic District
Baldwin, Baltimore County, Maryland
The record
- Listed
- December 30, 1982
- Type
- Historic district
- Address
- Glen Arm, Baldwin Mill, Manor, and Hartford Rds. areas, Baldwin
- County
- Baltimore
- State
- Maryland
- Period of significance
- 1700 to 1924
- Contributing resources
- 112 buildings
- Coordinates
- 39.47495, -76.48866
- Reference number
- 82001589