Marsden Tract Group Campsite
Campground
Closure in the area
There's a closure order in George Washington Memorial Parkway. It doesn't name Sand Box Crack, so check the source for the area it covers (4 listed).
Memorial Bridge Closed Monday, November 2, from 1 p.m. to 5 p.m.
Park closure covering George Washington Memorial Parkway · NPS · George Washington Memorial Parkway
Northbound GWMP Lane Closures Between Spout Run and Route 123
Park closure covering George Washington Memorial Parkway · NPS · George Washington Memorial Parkway
Single Lane Closures on South Parkway Near River Farm Drive
Park closure covering George Washington Memorial Parkway · NPS · George Washington Memorial Parkway
Temporary Closure of the Clara Barton Parkway 3500 ft of right travel lane
Park closure covering George Washington Memorial Parkway · NPS · George Washington Memorial Parkway
As of · Source: NPS · George Washington Memorial Parkway. Agencies don't list every closure — check before you go.
One of 12 routes catalogued at Sandbox, this climb sits in the lower-middle range of the crag's 5.0 to 5.11 span.
Marsden Tract Group Campsite
Campground
Great Falls Snack Bar
Fast food
If it rainsJoe Ravi, CC BY-SA 3.0 · Wikimedia CommonsColvin Run Mill
Museum
Operational 19th-century water-powered mill in the Washington, D.C. metropolitan area
Places © OpenStreetMap contributors · Photos: Joe Ravi, CC BY-SA 3.0 (commons)
More in Linton HallNot on Roamze yet. Their page has how to reach them.
Best months: March–June and September–November. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.
Jan
43° / 25°
10 wet
Feb
46° / 27°
9 wet
Mar
55° / 33°
11 wet
Apr
68° / 44°
11 wet
May
76° / 54°
11 wet
Jun
84° / 63°
10 wet
Jul
88° / 68°
10 wet
Aug
86° / 66°
10 wet
Sep
79° / 59°
9 wet
Oct
68° / 47°
10 wet
Nov
56° / 36°
10 wet
Dec
47° / 30°
11 wet
Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Dalecarlia Rsvr, MD, 8.3 mi away at 150 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.
Photo of the crag

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