Blaisdell Lake: Kyanite Rockhounding in Sawyer County, Wisconsin

Quick details

Access

Public area

County

Sawyer County

State

Wisconsin

Nearest road

Blaisdell Lake Road

Postcode

54896

Coordinates

45.93411, -90.89045

Geology at Blaisdell Lake

This spot sits on Biotite schist, mapped as biotite schist that formed roughly 2050 to 1800 million years ago. Metamorphic rock like this is where garnet, staurolite, and kyanite typically grow as the rock recrystallizes under heat and pressure.

Mapped unit

Biotite schist

Age

2050–1800 Ma (Paleoproterozoic)

Rock types

biotite schist

Elevation

1,370 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 Blaisdell Lake

Best months: April to October. Typical highs run 78°F in midsummer and 20°F in midwinter, with winter lows near 2°F.

Climate normals: NOAA 1991-2020 monthlies, WINTER station (11 mi away).

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.

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 Blaisdell Lake

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

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