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0 km
Potomac River and Catoctin Mountain at Point of Rocks, MD
in Places of Geologic Significance
At this location complex geological forces allowed the Potomac River to cut through the Catoctin Mountain, and the rock from this area was used to form the walls of the C&O Canal and the bed of the railroad tracks of the B&O Railroad.
posted by: NorStar
location: Maryland
date approved: 11/12/2014
last visited: 7/6/2013
NE63.1 km
Devil's Den - Gettysburg, PA
Devil's Den is the most sought after piece of real estate for kids, ghost hunters, Civil War buffs and re-enactors. From the air it looks like the bones of a foot. From the ground, it is a gigantic, jumbled mass of boulders.
posted by: Math Teacher
location: Pennsylvania
date approved: 7/23/2013
last visited: 9/1/2014
NW80.5 km
Sideling Hill near Hancock MD
When Interstate 68 was built in western Maryland, a cut through Sideling Hill exposed 810 feet of rock strata. Visitors can see and learn more about this geological formation at the rest stop near Hancock, Maryland.
posted by: akern.geo
date approved: 8/31/2009
last visited: 12/13/2013
S106.4 km
Rappahannock River Fall Line ~ Fredericksburg, VA
The fall line, the point where the Rappahannock becomes tidal. A major barrier for man and fish. Is crossed by U.S Route 1, the Jefferson Davis Hwy.
posted by: garmin_geek
location: Virginia
date approved: 3/24/2009
last visited: 6/19/2010
S109.6 km
Alum Spring Rock - Fredericksburg, VA
The Alum Spring sandstone cliff is a geological formation about 100 million years old.
posted by: La de Boheme
date approved: 7/21/2008
last visited: 3/11/2012
N144.7 km
Pulpit Rocks
Rock formation located off Old Pike Road, northwest of the town of Huntingdon, Pennyslvania.
posted by: redtailforester
date approved: 8/18/2008
last visited: 8/30/2012