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Places of Geologic Significance
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Managed By: Icon Here Interested Geologists
A category in which to place interesting rock, sand, soil formations and deformations which have been created by natural (not human) forces.
Expanded Description:
Geology is the science and study of the solid matter of a celestial body (in this case the Earth), its composition, structure, physical properties, history and the processes that shape it. Waymarks in this category should exhibit one or more geologic processes (processes which either build up or tear down rocks/sand/or soil).

Most interesting rock formations are either a result of two geologic processes, erosion or volcanism but there are others such as meteorite craters, and earthquake related deformation to name just a few.
Instructions for Posting a Places of Geologic Significance Waymark:
(Requirements updated 10-May-2012 to require an explanation of geologic significance in the description. Existing waymarks are grandfathered.)

The waymarks in this category should be examples of interesting rock, sand, or soil formations. An explanation of the geologic significance of the location must be included in the description. Including information on the geological dating and/or minerology of associated rocks will help greatly to insure that your waymark gets approved.

Geologically interesting features which are already covered under another category will be denied. These include Caves, Glaciers, Mountain Summits, Natural Arches, active volcanoes and Rock and Mineral Displays. As other more specific geologic categories are created they will become off-limits for this category, existing waymarks notwithstanding.

In the interest of environmental and civic responsibility, the following is a guideline.

Waymarks on public land which is already opened to the public and managed for visits to the location of waymark do not need approval from the land's management. Waymarks on public land which is unimproved for visitors, but otherwise open to unrestricted access by the public are also accepted. Waymarks on private land will be accepted if access is open to the public and this access is documented via a web site. Waymarks on private or otherwise restricted land will be accepted as long as the place of interest can be viewed from unrestricted public land (for example, road right of way).

If the category managers have any doubt as to the right of public access to the waymark, it will be deleted. Using web site references to build your case is encouraged.

Also, collecting and removal of any kind of sample from the site is strenuously discouraged.

A photo of the formation taken by the waymarker must be uploaded and used as the waymark page photo.
Instructions for Visiting a Waymark in this Category:
No specific requirements, just have fun visiting the waymark.
Category Settings:
  • Waymarks can be added to this category
  • New waymarks of this category are reviewed by the category group prior to being published
  • Category is visible in the directory
  • Waymark is confirmed to be publicly accessible
  • Parking Coordinates
  • Access fee (In local currency)
  • Requires a high clearance vehicle to visit.
  • Requires 4x4 vehicle to visit.
  • Public Transport available
  • Website reference
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Total Records: 6 Page: 1 of 1 prev<<<[1]>>>next
Image for Potomac River and Catoctin Mountain at Point of Rocks, MDview gallery

here0 km

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Places of Geologic SignificancePotomac 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: Groundspeak Premium Member NorStar

location: Maryland

date approved: 11/12/2014

last visited: 7/6/2013

Image for Devil's Den - Gettysburg, PAview gallery

NENE63.1 km

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Places of Geologic SignificanceDevil's Den - Gettysburg, PA

in Places of Geologic Significance

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: Groundspeak Regular Member Math Teacher

location: Pennsylvania

date approved: 7/23/2013

last visited: 9/1/2014

Image for Sideling Hill near Hancock MDview gallery

NWNW80.5 km

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Places of Geologic SignificanceSideling Hill near Hancock MD

in Places of Geologic Significance

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: Groundspeak Premium Member akern.geo

location: Maryland

date approved: 8/31/2009

last visited: 12/13/2013

Image for Rappahannock River Fall Line ~ Fredericksburg, VAview gallery

SS106.4 km

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Places of Geologic SignificanceRappahannock River Fall Line ~ Fredericksburg, VA

in Places of Geologic Significance

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: Groundspeak Premium Member garmin_geek

location: Virginia

date approved: 3/24/2009

last visited: 6/19/2010

Image for Alum Spring Rock - Fredericksburg, VAview gallery

SS109.6 km

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Places of Geologic SignificanceAlum Spring Rock - Fredericksburg, VA

in Places of Geologic Significance

The Alum Spring sandstone cliff is a geological formation about 100 million years old.

posted by: Groundspeak Regular Member La de Boheme

location: Virginia

date approved: 7/21/2008

last visited: 3/11/2012

Image for Pulpit Rocksview gallery

NN144.7 km

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Places of Geologic SignificancePulpit Rocks

in Places of Geologic Significance

Rock formation located off Old Pike Road, northwest of the town of Huntingdon, Pennyslvania.

posted by: Groundspeak Regular Member redtailforester

location: Pennsylvania

date approved: 8/18/2008

last visited: 8/30/2012

Total Records: 6 Page: 1 of 1 prev<<<[1]>>>next
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