Pilgrim Haven Natural Area: Lightning Stone & Quartz Rockhounding in Van Buren County, Michigan

Updated August 2026

Pilgrim Haven Natural Area is a mapped rockhounding spot in Van Buren County, Michigan. Reported finds include lightning stone, quartz, unakite, horn coral, crinoid, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Van Buren County
State: Michigan
Postcode: 49090
Coordinates: 42.35267, -86.29870

Geology at Pilgrim Haven Natural Area

This spot sits on Coldwater Shale, mapped as shale that formed roughly 360 to 325 million years ago. Sedimentary layers like these are where fossils are typically preserved, and fresh exposures after rain or in active cuts tend to produce best.

Mapped unit: Coldwater Shale
Age: 360–325 Ma (Mississippian)
Rock types: shale
Elevation: 620 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 Pilgrim Haven Natural Area

Best months: March to November. Typical highs run 80°F in midsummer and 33°F in midwinter, with winter lows near 22°F.

Climate normals: NOAA 1991-2020 monthlies, S HAVEN 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

Found at Pilgrim Haven Natural Area

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 Pilgrim Haven Natural Area.

Across the state line from Pilgrim Haven Natural Area

Pilgrim Haven Natural Area 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.

Pilgrim Haven Natural Area FAQ

Where is Pilgrim Haven Natural Area?+

Pilgrim Haven Natural Area is in Van Buren County, Michigan, at 42.35267, -86.29870.

What rocks and minerals can you find at Pilgrim Haven Natural Area?+

Pilgrim Haven Natural Area is reported to produce Lightning Stone, Quartz, Unakite, Horn Coral, Crinoid, Chert, Petoskey Stone, Cold Water Agate, Yooperlite, Slag.

Is collecting allowed at Pilgrim Haven Natural Area?+

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 Pilgrim Haven Natural Area?+

A rock hammer, a cold chisel, safety glasses, and newspaper or foam for wrapping finds cover most fossil ground. A trowel and a sieve help in soft exposures.

When is the best time to visit Pilgrim Haven Natural Area?+

The most comfortable months at Pilgrim Haven Natural Area are March to November.

How do I get to Pilgrim Haven Natural Area?+

Open the directions link to navigate to 42.35267, -86.29870 in Google Maps. Some spots are remote, so check road conditions before driving out.

More rockhounding in Michigan

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Open Pilgrim Haven Natural Area on the map

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