Where to Find Horn Coral in Michigan
Michigan has 18 mapped collecting spots that report horn coral, spread across 12 counties. The largest share sits in Leelanau County with 3 spots. 15 of the spots are on land mapped as publicly accessible, and 2 are fee-dig sites.
Spot list checked against source data on April 1, 2026.
Every horn coral spot we track in Michigan
Best spotRockport Recreation AreaAlpena County, MichiganPublic access · Petoskey Stone, Fossilized Coral, Brachiopod +10
Singing Bridge Public AccessArenac County, MichiganPublic access · Petoskey Stone, Charlevoix Stone, Gneiss +14- Hidden BeachLeelanau County, MichiganPublic access · Leland Blue, Petoskey Stone, Unakite +12
- Van's BeachLeelanau County, MichiganPublic access · Leland Blue, Petoskey Stone, Unakite +12
- North BeachLeelanau County, MichiganPublic access · Petoskey Stone, Unakite, Stromatoporoid +11
- Point Betsie LighthouseBenzie County, MichiganPublic access · Petoskey Stone, Chert, Chain Coral +10
- Deerlick Creek ParkVan Buren County, MichiganPublic access · Fossil, Lightning Stone, Unakite +9
- Rocky Gap ParkBerrien County, MichiganPublic access · Petoskey Stone, Unakite, Quartz +9
- Pilgrim Haven Natural AreaVan Buren County, MichiganPublic access · Lightning Stone, Quartz, Unakite +7
Frankfort Public Beach And PlaygroundBenzie County, MichiganCheck locally · Granite, Chert, Quartz +5- Harrisville State ParkAlcona County, MichiganFee dig · Granite, Chert, Quartz +5
- Lake Huron Roadside ParkSanilac County, MichiganPublic access · Puddingstone, Gowganda Tillite, Stinkstone +5
- Pier Cove ParkAllegan County, MichiganPublic access · Lightning Stone, Quartz, Unakite +5
- Hoeft State ParkPresque Isle County, MichiganFee dig · Puddingstone, Granite, Quartz +4
- Antrim Creek Natural AreaAntrim County, MichiganPublic access · Petoskey Stone, Charlevoix Stone, Horn Coral +3
- Bayfront Park (West)Emmet County, MichiganPublic access · Petoskey Stone, Charlevoix Stone, Horn Coral +2
- Magnus ParkEmmet County, MichiganPublic access · Petoskey Stone, Charlevoix Stone, Brachiopod +2
- Partridge PointAlpena County, MichiganPublic access · Crinoid, Brachiopod, Horn Coral +1
Standout horn coral spots in Michigan
Hand-picked from the full list above, with the reason each one earns a trip.
Best counties for horn coral in Michigan
Ranked by the number of mapped horn coral spots. County links open the full rockhounding page for that county.
- Leelanau County3 spots
- Alpena County2 spots
- Benzie County2 spots
- Emmet County2 spots
- Van Buren County2 spots
- Alcona County1 spot
- Allegan County1 spot
- Antrim County1 spot
- Arenac County1 spot
- Berrien County1 spot
- Presque Isle County1 spot
- Sanilac County1 spot
Before you go
Read the horn coral identification guide so you know what a keeper looks like in the field: Horn Coral in the encyclopedia.
Horn Coral in Michigan FAQ
Where can you find horn coral in Michigan?+
The mapped spots concentrate in Leelanau County, Alpena County, and Benzie County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many horn coral spots are mapped in Michigan?+
18 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 horn coral 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 18 mapped spots here sit on land marked public, and 2 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.
More minerals to hunt in Michigan
Hunt horn coral 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.
