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Geological Formation

Sugarloaf Mountain, Maryland

Inselbergs and Crystalline Monoliths

Sugarloaf Mountain is an isolated quartzite peak in Frederick County, Maryland, rising abruptly about 240 meters above the surrounding farmland to an elevation of 391 meters, roughly ten miles south of Frederick. Its bedrock, the roughly five-hundred-million-year-old Sugarloaf Mountain Quartzite interbedded with softer slate and phyllite, is thought to represent either an outlier of nearby Catoctin Mountain or a remnant of the much older Appalachian mountain system, left standing as the softer rock around it wore away. Designated a National Natural Landmark in 1969, it remains visible for miles across the surrounding Piedmont countryside.

Facts
Classification
Protected Status
National Monument or Landmark 1
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In Discipline

Source Sugarloaf Mountain (Maryland) (Wikipedia)
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Sources
1. Sugarloaf Mountain (Maryland) (Wikipedia)
  • Article text
    Because of its geological and natural history interest, it was designated a National Natural Landmark in 1969. It is a notable example of an admission-free (although donations are requested), privately owned scenic park.
  • In Discipline: Geomorphology, Lead section (in-discipline Geomorphology)
    Sugarloaf Mountain is a small (1,283 feet; 391 m) mountain and park about 10 miles (16 km) south of Frederick, Maryland.
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Wikidata: Sugarloaf Mountain, Maryland
Wikidata Q2207325, class allow-list match (w-wdresolver-0926)View the Source
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