Marble Quarry

Campground near Poolesville, Maryland (tagged tourism=camp_site).

Operator: National Park Service
Fee: No fee (tagged fee=no)
Reservations: No reservations (tagged reservation=no)
Capacity: not recorded in OpenStreetMap
Dump station on site: No (tagged sanitary_dump_station=no)
Water: drinking water: yes
Electrical hookups: not recorded in OpenStreetMap
Toilets: Yes (tagged toilets=yes)
Showers: not recorded in OpenStreetMap
Website: https://www.nps.gov/choh/planyourvisit/camping.htm
Coordinates: 39.17942, -77.49257 (view on OpenStreetMap)

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Nearest RV dump station

RV dump station near Bolivar · 17 mi

Nearest campgrounds

Turtle Run Hiker Biker Campsite · Campground · 3.0 mi · near Poolesville · no fee (tagged fee=no)
Indian Flats · Campground · 3.9 mi · near Barnesville · no fee (tagged fee=no)
Chisel Branch · Campground · 5.7 mi · near Poolesville · no fee (tagged fee=no)
Calico Rocks · Campground · 6.6 mi · near Point of Rocks · no fee (tagged fee=no)
Turner Farm · Campground · 6.9 mi · near Barnesville

All dump stations and campgrounds in Maryland

Source: OpenStreetMap node 2021563182, data as of 2026-10-21. Map data © OpenStreetMap contributors (ODbL). Straight-line distances. The nearby city is the closest US Census Bureau place (5.11 mi away).