Mine (feldspar): Feldspar Rockhounding in Lake of the Woods County, Minnesota

Quick details

Access

Permission required

County

Lake of the Woods County

State

Minnesota

Coordinates

49.30666, -94.95450

Geology at Mine (feldspar)

This spot sits on Mafic metavolcanic rocks, mapped as metabasalt and greenstone that formed roughly 2800 to 2500 million years ago. Volcanic ground like this weathers into rocky slopes and float, and fresh exposures in cuts and drainages are usually the most productive places to look.

Mapped unit

Mafic metavolcanic rocks

Age

2800–2500 Ma (Neoarchean)

Rock types

metabasalt and greenstone

Elevation

1,130 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.

Best time to visit Mine (feldspar)

Best months: April to October. Typical highs run 77°F in midsummer and 13°F in midwinter, with winter lows near -8°F.

Climate normals: NOAA 1991-2020 monthlies, WARROAD station (33 mi away).

Land & collecting status

Permission required before collecting

Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.

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.

Sources & 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.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Mine (feldspar)

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

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