Marble Quarry Hiker-biker Campsite
Open year-round, free, first-come first-served with no reservations. Stays limited to one night per site per trip. Non-potable well water is available mid-April through mid-November and must be treated before use. Water is shut off mid-November through mid-April.
Extreme Heat Warning issued July 1 at 1:32PM EDT until July 3 at 8:00PM EDT by NWS Baltimore MD/Washington DC
* WHAT...For the Heat Advisory, heat index values up to 107. For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the first Extreme Heat Warning, from 10 AM to 8 PM EDT Thursday. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Extreme Heat Warning issued July 1 at 1:32PM EDT until July 2 at 8:00PM EDT by NWS Baltimore MD/Washington DC
* WHAT...For the Heat Advisory, heat index values up to 107. For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the first Extreme Heat Warning, from 10 AM to 8 PM EDT Thursday. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Heat Advisory issued July 1 at 1:32PM EDT until July 1 at 8:00PM EDT by NWS Baltimore MD/Washington DC
* WHAT...For the Heat Advisory, heat index values up to 107. For the first Extreme Heat Warning, dangerously hot conditions with heat index values up to 111 expected. For the second Extreme Heat Warning, dangerously hot conditions with heat index values up to 112 expected. * WHERE...Portions of DC, central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia. * WHEN...For the Heat Advisory, until 8 PM EDT this evening. For the first Extreme Heat Warning, from 10 AM to 8 PM EDT Thursday. For the second Extreme Heat Warning, from 10 AM to 8 PM EDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
About
Marble Quarry Hiker-Biker Campsite is one of numerous primitive campsites spaced every 5-7 miles along the historic Chesapeake and Ohio Canal towpath. Located at Mile 38.2 near Poolesville, Maryland, it provides a convenient overnight stop for long-distance hikers and cyclists traversing the 184.5-mile trail between Georgetown and Cumberland. The campsite operates on a no-fee, first-come first-served basis with no reservations accepted. Overnight stays are limited to one night per site per trip. Standard amenities include a chemical toilet, picnic table, and fire ring. Non-potable well water is available seasonally from mid-April through mid-November, but must be filtered, chemically treated, or boiled before consumption. Campers must pack out all trash as this is a trash-free park. Fires are restricted to the provided fire rings or portable grills positioned off the ground. Pets are welcome but must remain leashed at all times. Quiet hours are enforced from 10 PM to 6 AM. The site can accommodate approximately 5-10 tents depending on configuration.
Directions
Located at mile 38.2 on the C&O Canal towpath near Poolesville, MD. Accessible only by foot, bicycle, or horseback via the towpath.
Nearby Campgrounds
Location
Amenities
| Water | No |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | No |
| Wifi | — |
| Pets Allowed | Yes |
| Showers | No |
| Electric Hookups | — |
| Water Hookups | — |
| Sewer Hookups | — |
| Camp Store | No |
| Price | $0 |
Vehicle
| Max RV Length | — |
| Max Trailer Length | — |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| CHOH_information@nps.gov | |
| Phone | +1 (301) 739-4200 |
Cell Service
| AT&T | None |
| Verizon | Yes |
| T-Mobile | Yes |
Photos
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