Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:company
|
| gptkbp:ceased_operations |
1901
|
| gptkbp:founded |
1866
|
| gptkbp:historicalSignificance |
major supplier of building stone in 19th-century Washington, D.C.
|
| gptkbp:industry |
quarrying
building materials |
| gptkbp:location |
Seneca, Montgomery County, Maryland, United States
|
| gptkbp:material_color |
reddish-brown
|
| gptkbp:material_used_for |
Washington, D.C. buildings
|
| gptkbp:notableProject |
gptkb:Smithsonian_Castle
gptkb:National_Cathedral Lock 24 of the C&O Canal |
| gptkbp:product |
Seneca red sandstone
|
| gptkbp:quarry_location |
near Potomac River
|
| gptkbp:bfsParent |
gptkb:Seneca_Quarry
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Seneca Sandstone Company
|