Presque Isle — Rockhounding in Presque Isle County, Michigan

Presque Isle is a mapped rockhounding spot in Presque Isle County, Michigan. Reported finds include agate, chalcedony geode, sandstone with calcite veins. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Presque Isle County
State: Michigan
Postcode: 49777
Coordinates: 45.35037, -83.55155

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.

State guidance last verified: April 1, 2026

Michigan DNR — Rockhounding rules
Michigan Geological Survey
Isle Royale National Park — Rules
Community submissions reviewed against published agency rules

Found at Presque Isle

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

Agate Encyclopedia →
Chalcedony GeodeEncyclopedia →
Sandstone With Calcite VeinsEncyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Presque Isle.

Presque Isle FAQ

Where is Presque Isle?+

Presque Isle is in Presque Isle County, Michigan, at 45.35037, -83.55155.

What rocks and minerals can you find at Presque Isle?+

Presque Isle is reported to produce Agate, Chalcedony Geode, Sandstone With Calcite Veins.

Is collecting allowed at Presque Isle?+

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.

How do I get to Presque Isle?+

Open the directions link to navigate to 45.35037, -83.55155 in Google Maps. Some spots are remote — check road conditions before driving out.

More rockhounding in Michigan

See all 22 Michigan spots →

Open Presque Isle on the map

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