Frederick Quarry
Mineral resource occurrence
USGS ResearchMARYLAND CITY ROCKHOUNDING HUB
Frederick anchors central Maryland gold-belt, quartz and carbonate research between the Piedmont and Blue Ridge.
LOCAL INTERACTIVE MAP
Explore nearby Maryland records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.

Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.
This hub uses Frederick as a geographic base, while the material mix is calculated from the records actually mapped around it.
Records are ordered by evidence status first, then distance. Open the detailed guide before treating any pin as a trip destination.
Mineral resource occurrence
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchIron
USGS ResearchCopper, Silver
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS Researchtransported boulders and surficial clasts
Core atlasIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchIron
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchMolybdenum
USGS ResearchCopper, Cobalt, Nickel
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchCopper, Cobalt, Nickel
USGS ResearchMineral resource occurrence
USGS ResearchMineral resource occurrence
USGS ResearchMineral resource occurrence
USGS ResearchMineral resource occurrence
USGS ResearchIron
USGS ResearchGold
USGS Research