Diamond Bluff: Diamond Rockhounding in Pierce County, Wisconsin

Updated June 2026

Diamond Bluff is a mapped rockhounding spot in Pierce County, Wisconsin. Reported finds include diamond. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Pierce County
State: Wisconsin
Nearest road: State Highway 35
Postcode: 54021
Coordinates: 44.65514, -92.63674

Geology at Diamond Bluff

This spot sits on ground mapped as Mazomanie and Lone Rock Formations, undifferentiated that formed roughly 495 to 485 million years ago. Fresh exposures, cuts, and drainages are typically the most productive places to look on ground like this.

Mapped unit: Mazomanie and Lone Rock Formations, undifferentiated
Age: 495–485 Ma (Late Cambrian)
Elevation: 740 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 Diamond Bluff

Best months: April to October. Typical highs run 82°F in midsummer and 23°F in midwinter, with winter lows near 5°F.

Climate normals: NOAA 1991-2020 monthlies, RED WING DAM 3 station (3 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 Diamond Bluff

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

Diamond Encyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Diamond Bluff.

Across the state line from Diamond Bluff

Diamond Bluff is close enough to the Wisconsin border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Diamond Bluff FAQ

Where is Diamond Bluff?+

Diamond Bluff is in Pierce County, Wisconsin, at 44.65514, -92.63674. Nearest road: State Highway 35.

What rocks and minerals can you find at Diamond Bluff?+

Diamond Bluff is reported to produce Diamond.

Is collecting allowed at Diamond Bluff?+

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. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Diamond Bluff?+

A rock hammer, sturdy gloves, safety glasses, and a collecting bag cover the basics here. Add a spray bottle: wet rock shows color and pattern that dry rock hides.

When is the best time to visit Diamond Bluff?+

The most comfortable months at Diamond Bluff are April to October.

How do I get to Diamond Bluff?+

Open the directions link to navigate to 44.65514, -92.63674 in Google Maps. The nearest road is State Highway 35.

More rockhounding in Wisconsin

See all 77 Wisconsin spots →

Open Diamond Bluff on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.