Ashland County: Agate & Jasper Rockhounding in Ashland County, Wisconsin

Updated June 2026

Ashland County is a mapped rockhounding spot in Ashland County, Wisconsin. Reported finds include agate, jasper. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Ashland County
State: Wisconsin
Nearest road: Fenton Road
Coordinates: 46.24896, -90.68518

Geology at Ashland County

This spot sits on Puritan Quartz Monzonite, mapped as granodiorite and granite that formed roughly 3200 to 2500 million years ago. Plutonic rock like this weathers slowly into grus and boulders, and the most productive collecting is typically in weathered zones and drainages.

Mapped unit: Puritan Quartz Monzonite
Age: 3200–2500 Ma (Mesoarchean to Neoarchean)
Rock types: granodiorite and granite
Elevation: 1,440 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 Ashland County

Best months: April to October. Typical highs run 77°F in midsummer and 20°F in midwinter, with winter lows near 2°F.

Climate normals: NOAA 1991-2020 monthlies, MELLEN 4 NE station (9 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 Ashland County

Each chip 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 Ashland County.

Across the state line from Ashland County

Ashland County 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.

Ashland County FAQ

Where is Ashland County?+

Ashland County is in Ashland County, Wisconsin, at 46.24896, -90.68518. Nearest road: Fenton Road.

What rocks and minerals can you find at Ashland County?+

Ashland County is reported to produce Agate, Jasper.

Is collecting allowed at Ashland County?+

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 Ashland County?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

When is the best time to visit Ashland County?+

The most comfortable months at Ashland County are April to October.

How do I get to Ashland County?+

Open the directions link to navigate to 46.24896, -90.68518 in Google Maps. The nearest road is Fenton Road.

More rockhounding in Wisconsin

See all 77 Wisconsin spots →

Open Ashland County on the map

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