Philadelphia: Hematite & Pyrite Rockhounding in Jefferson County, New York
- Minerals reported
- 3
- Elevation
- 500 ft
- Best months
- April to November
Philadelphia is a mapped rockhounding spot in Jefferson County, New York. Reported finds include hematite, pyrite, siderite. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Generally open to casual rockhounding
- County
- Jefferson County
- State
- New York
- Nearest road
- Sand Street
- Postcode
- 13673
- Coordinates
- 44.15460, -75.70935
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Best time to visit Philadelphia
Comfortable months (45 to 90°F highs)
Best months: April to November. Typical highs run 80°F in midsummer and 29°F in midwinter, with winter lows near 11°F.
Climate normals: NOAA 1991-2020 monthlies, WATERTOWN station (15 mi away).
Geology at Philadelphia
This spot sits on Biotite and/or hornblende granite gneiss, mapped as gneiss that formed roughly 1600 to 1000 million years ago. Metamorphic terrain like this commonly hosts vein and replacement mineralization, and old workings typically mark the productive zones.
- Mapped unit
- Biotite and/or hornblende granite gneiss
- Age
- 1600–1000 Ma (Mesoproterozoic)
- Rock types
- gneiss
- Elevation
- 500 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Today's weather
Is today a good day to go?
The app shows live weather, recent rain, and a daily rockhounding score for Philadelphia.
Get the appSources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
- New York State Museum, Geological Survey
- NYS DEC land use rules
- Herkimer Diamond Mines
- Community submissions reviewed against published agency rules
Found at Philadelphia
Each name opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Philadelphia.
- Sterling MineJefferson County, New York · 8 mi awayHematite, Magnetite, Millerite
- Muskellunge LakeJefferson County, New York · 11 mi awayFluorite
- Oxbow Road Cut (Oxbow-Rossie Road)Saint Lawrence County, New York · 11 mi awayCalcite
- Hicks FarmSaint Lawrence County, New York · 11 mi awayTitanite, Spinel, Calcite
- Rossie Lead MinesSaint Lawrence County, New York · 16 mi awayGalena, Calcite, Graphite
- Oswegatchie River AreaSaint Lawrence County, New York · 16 mi awaySerpentine
- Quarry (Talc)Lewis County, New York · 16 mi awaySerpentine, Talc
- Fowler BalmatSaint Lawrence County, New York · 17 mi awayGalena, Calcite, Magnetite
Philadelphia FAQ
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More rockhounding in New York
See all 92 New York spots →
Open Philadelphia on the map
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