Ashland Quarry
From Underfoot
Q49397749
mine in Middlesex County, Massachusetts, United States of America
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | tunnel | Clinton tunnel | railway tunnel | Wikidata | |
| site | tunnel | Cosgrove Aqueduct | water tunnel | Wikidata | |
| site | tunnel | MetroWest Water Supply Tunnel | water tunnel | Wikidata | |

