La Crosse County: Lake Superior Agate Rockhounding in La Crosse County, Wisconsin

Quick details

Access

Public area

County

La Crosse County

State

Wisconsin

Nearest road

Two Creeks Court

Postcode

54669

Coordinates

43.83655, -91.10903

Geology at La Crosse County

This spot sits on ground mapped as Stream sediment that formed within roughly the last 12,000 years. Tough silica like agate, jasper, and chert typically weathers out of beds like these and collects as float in drainages and on deflation surfaces.

Mapped unit

Stream sediment

Age

< 1 Ma (Holocene)

Elevation

720 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 La Crosse County

Best months: April to October. Typical highs run 82°F in midsummer and 26°F in midwinter, with winter lows near 10°F.

Climate normals: NOAA 1991-2020 monthlies, LA CROSSE WFO station (4 mi away), adjusted for elevation.

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 La Crosse County

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

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