Keweenaw Rocket Range: Granite & Prehnite Rockhounding in Keweenaw County, Michigan

Updated August 2026

Keweenaw Rocket Range is a mapped rockhounding spot in Keweenaw County, Michigan. Reported finds include granite, prehnite, copper, agate nodule. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Keweenaw County
State: Michigan
Nearest road: Rocket Range Road
Postcode: 49918
Coordinates: 47.43035, -87.71470

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 Keweenaw Rocket Range

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 Keweenaw Rocket Range.

Keweenaw Rocket Range FAQ

Where is Keweenaw Rocket Range?+

Keweenaw Rocket Range is in Keweenaw County, Michigan, at 47.43035, -87.71470. Nearest road: Rocket Range Road.

What rocks and minerals can you find at Keweenaw Rocket Range?+

Keweenaw Rocket Range is reported to produce Granite, Prehnite, Copper, Agate Nodule.

Is collecting allowed at Keweenaw Rocket Range?+

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 Keweenaw Rocket Range?+

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.

How do I get to Keweenaw Rocket Range?+

Open the directions link to navigate to 47.43035, -87.71470 in Google Maps. The nearest road is Rocket Range Road.

More rockhounding in Michigan

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Open Keweenaw Rocket Range on the map

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