Where to Find Lake Superior Agate in Michigan

Michigan has 25 mapped collecting spots that report lake superior agate, spread across 12 counties. The largest share sits in Luce County with 5 spots. 15 of the spots are on land mapped as publicly accessible, and 6 are fee-dig sites.

Spot list checked against source data on April 1, 2026.

Standout lake superior agate spots in Michigan

Hand-picked from the full list below, with the reason each one earns a trip.

Woodland Park Beach, Grand Marais
Alger County
Grand Marais is the most famous place in Michigan to hunt Yooperlites, sodalite-bearing syenite stones that glow bright orange under ultraviolet light.
Manitou Island
Keweenaw County
The 93-acre Manitou Island Light Station Preserve, owned by the Keweenaw Land Trust off the tip of the Keweenaw, is one of the few outer-island shores expressly open to the public for rock collecting.

Best counties for lake superior agate in Michigan

Ranked by the number of mapped lake superior agate spots. County links open the full rockhounding page for that county.

Every lake superior agate spot we track in Michigan

Sorted by county. Coordinates open in Google Maps.

Spot	County	Minerals	Coordinates	Access
Bay Furnace Ruins	Alger County	Slag Hematite Banded Iron Formation Jaspillite Yooperlite Lake Superior Agate	46.4418, -86.7056	Check locally
Woodland Park Beach, Grand Marais	Alger County	Yooperlite Lake Superior Agate Jasper Quartz Granite Banded Iron Formation Gneiss Rhyolite +1 more	46.6733, -85.9911	Public
Point Betsie Lighthouse	Benzie County	Petoskey Stone Chert Chain Coral Granite Unakite Crinoid Brachiopod Horn Coral +5 more	44.6913, -86.2553	Public
Fisherman's Island State Park	Charlevoix County	Petoskey Stone Charlevoix Stone Lake Superior Agate Yooperlite	45.3080, -85.3102	Paid / fee
Point Iroquois Lighthouse	Chippewa County	Lake Superior Agate Yooperlite	46.4843, -84.6324	Public
Vermilion Point	Chippewa County	Omar Chert Granite Unakite Quartz Lake Superior Agate	46.7631, -85.1490	Public
Wilderness State Park #26	Emmet County	Stromatolite Jacobsville Sandstone Garnet Schist Lake Superior Agate Hematite Gastropod	45.7575, -84.9687	Paid / fee
Little Girls Point County Park	Gogebic County	Basalt Granite Unakite Jasper Quartz Jacobsville Sandstone Lake Superior Agate	46.6039, -90.3221	Public
Agate Beach Park	Houghton County	Unakite Chert Quartz Lake Superior Agate Yooperlite	47.0399, -88.9257	Public
Calumet Waterworks Park	Houghton County	Lake Superior Agate Prehnite Natrolite Mesolite Yooperlite Patricianite Chlorastrolite Copper	47.2741, -88.5298	Check locally
McClain State ParkBear Lake Road	Houghton County	Adularia Chalcedony Chert Jasper Keweenaw Agate Thomsonite Prehnite Quartz +3 more	47.2368, -88.6147	Permission
Gratiot River County Park	Keweenaw County	Freda Sandstone Basalt Rhyolite Unakite Granite Lake Superior Agate Prehnite Mesolite	47.3437, -88.4525	Public
High Rock Bay	Keweenaw County	Prehnite Calcite Copper Epidote Lake Superior Agate Datolite Isle Royale Greenstone	47.4233, -87.7152	Public
Manitou Island	Keweenaw County	Lake Superior Agate Quartz	47.4150, -87.6279	Public
Empire Beach	Leelanau County	Petoskey Stone Charlevoix Stone Unakite Chert Lake Superior Agate Yooperlite	44.8120, -86.0681	Check locally
Hidden Beach	Leelanau County	Leland Blue Petoskey Stone Unakite Quartz Granite Jasper Chert Charlevoix Stone +7 more	45.0196, -85.7645	Public
North Beach	Leelanau County	Petoskey Stone Unakite Stromatoporoid Charlevoix Stone Horn Coral Stromatolite Granite Quartz +6 more	45.0260, -85.7596	Public
Van's Beach	Leelanau County	Leland Blue Petoskey Stone Unakite Quartz Granite Jasper Chert Charlevoix Stone +7 more	45.0223, -85.7625	Public
Crisp Point Lighthouse	Luce County	Granite Quartz Chert Omar Gneiss Jasper Unakite Rhyolite +4 more	46.7529, -85.2574	Public
Deer Park Beach at Lake Superior	Luce County	Lake Superior Agate	46.6749, -85.6158	Paid / fee
Lake Superior State Forest Campground	Luce County	Granite Unakite Quartz Omar Chert Lake Superior Agate	46.6768, -85.7560	Paid / fee
Muskallonge Lake State Park	Luce County	Granite Chert Omar Unakite Quartz Gneiss Rhyolite Basalt +2 more	46.6766, -85.6281	Paid / fee
Two Hearted River State Forest Campground	Luce County	Unakite Epidote Chert Gneiss Granite Jacobsville Sandstone Quartz Chalcedony +11 more	46.6981, -85.4226	Paid / fee
Lakeshore Beach	Marquette County	Slag Quartz Granite Lake Superior Agate	46.5612, -87.3881	Public
Green Park	Ontonagon County	Charlevoix Stone Honeycomb Coral Rhyolite Quartz Lake Superior Agate Yooperlite	46.8390, -89.4360	Public

Before you go

Read the lake superior agate identification guide so you know what a keeper looks like in the field: Lake Superior Agate in the encyclopedia.

Lake Superior Agate in Michigan FAQ

Where can you find lake superior agate in Michigan?+

The mapped spots concentrate in Luce County, Leelanau County, and Houghton County. Every spot on this page appears on the map above with coordinates and access notes.

How many lake superior agate spots are mapped in Michigan?+

25 spots across 12 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.

Is it legal to collect lake superior agate in Michigan?+

Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 15 of the 25 mapped spots here sit on land marked public, and 6 are fee-dig operations where you pay for access and keep what you find. Always confirm current rules with the managing agency before you dig.

Where else to find lake superior agate

More minerals to hunt in Michigan

Hunt lake superior agate in Michigan with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.