Crandell Lake: Rockhounding in Eaton County, Michigan

Updated August 2026

Crandell Lake is a mapped rockhounding spot in Eaton County, Michigan. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Eaton County
State: Michigan
Coordinates: 42.55338, -84.77054

Geology at Crandell Lake

This spot sits on Saginaw Formation, mapped as sandstone and shale that formed roughly 325 to 300 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit: Saginaw Formation
Age: 325–300 Ma (Pennsylvanian)
Rock types: sandstone and shale
Elevation: 910 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 Crandell Lake

Best months: April to November. Typical highs run 81°F in midsummer and 30°F in midwinter, with winter lows near 15°F.

Climate normals: NOAA 1991-2020 monthlies, CHARLOTTE 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.

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Crandell Lake.

Across the state line from Crandell Lake

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

Medusa Quarry in SylvaniaTop pick in OhioLucas County, Ohio · 79 mi awayFossils

Crandell Lake FAQ

Where is Crandell Lake?+

Crandell Lake is in Eaton County, Michigan, at 42.55338, -84.77054.

What rocks and minerals can you find at Crandell Lake?+

Crandell Lake is on the rockhounding map but no minerals are listed in our reference. Open RockHoundR to see what other rockhounds have logged.

Is collecting allowed at Crandell Lake?+

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 Crandell Lake?+

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 Crandell Lake?+

The most comfortable months at Crandell Lake are April to November.

How do I get to Crandell Lake?+

Open the directions link to navigate to 42.55338, -84.77054 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Michigan

See all 107 Michigan spots →

Open Crandell Lake on the map

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