Wissahickon Quarry
From Underfoot
Q49459307
mine in Montgomery County, Pennsylvania, United States of America
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Location: 40.0881, -75.1775, KML, Cluster Map, Maps,
6 places
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Port Kennedy Bone Cave ⓘ
cave in United States of America -
Black Rock Tunnel ⓘ
railway tunnel in Phoenixville, Pennsylvania -
Center City Commuter Connection ⓘ
railway tunnel in Center City Philadelphia -
Flat Rock Tunnel ⓘ
rail tunnel in Pennsylvania, United States of America -
SEPTA east-west subway tunnel ⓘ
tunnel under Philadelphia carrying trolley lines and the Market-Frankford line subway -
Spring Garden Street Tunnel ⓘ
vehicular tunnel under the Philadelphia Art Museum
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | cave | Port Kennedy Bone Cave | cave | Wikidata | |
| site | tunnel | Black Rock Tunnel | railway tunnel | Wikidata | |
| site | tunnel | Center City Commuter Connection | Southeastern Pennsylvania Transportation Authority, railway tunnel | Wikidata | |
| site | tunnel | Flat Rock Tunnel | railway tunnel | Wikidata | |
| site | tunnel | SEPTA east-west subway tunnel | Southeastern Pennsylvania Transportation Authority, tunnel | Wikidata | |
| site | tunnel | Spring Garden Street Tunnel | road tunnel | Wikidata | |