Big Bay Town Park — Rockhounding in Ashland County, Wisconsin
Big Bay Town Park on Madeline Island gives collectors a Lake Superior beach reachable by the Bayfield ferry. The long pebble and sand beach along Big Bay yields Lake Superior agates, jasper, and basalt cobbles, some carrying zeolite and thomsonite amygdules. The town park is public and open to collecting, in contrast to the adjacent Big Bay State Park, where rock removal requires written state permission. Reported finds include lake superior agate, jasper, thomsonite, basalt. Below: coordinates, access notes, nearby spots, and trip-planning links.
Big Bay Town Park photos
Public image records connected to this spot or its reported material.
Map showing Big Bay Town Park in Ashland County, Wisconsin
Quick details
- Access
- Public area
- County
- Ashland County
- State
- Wisconsin
- Nearest road
- Hagen Road
- Postcode
- 54850
- Coordinates
- 46.78460, -90.64780
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.
Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.
Found at Big Bay Town Park
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 Big Bay Town Park.
- Saxon Harbor County ParkTop pick in WisconsinIron County, Wisconsin · 18 mi awayLake Superior Agate, Jasper, Copper
- Near Saxon FallsTop pick in WisconsinIron County, Wisconsin · 21 mi awayCalcite, Chlorite, Epidote
- General AreaAshland County, Wisconsin · 25 mi awayCopper
- Iron CountyIron County, Wisconsin · 29 mi awayAgate, Jasper
- Montreal MineIron County, Wisconsin · 32 mi awayActinolite, Barite, Selenite
- Iron CountyIron County, Wisconsin · 32 mi awayCopper
- Ashland CountyAshland County, Wisconsin · 37 mi awayAgate, Jasper
- Bayfield CountyTop pick in WisconsinBayfield County, Wisconsin · 40 mi awayAgate, Jasper
Across the state line from Big Bay Town Park
Big Bay Town Park is close enough to the Wisconsin border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
- Gull RockLake County, Minnesota · 45 mi awayLake Superior Agate
- Beaver BayTop pick in MinnesotaLake County, Minnesota · 45 mi awayLake Superior Agate, Thomsonite
- Little Marais RiverLake County, Minnesota · 48 mi awayThomsonite, Zeolite
- Kelsey BeachTop pick in MinnesotaLake County, Minnesota · 50 mi awayLake Superior Agate
- Gull PointOntonagon County, Michigan · 52 mi awayKeweenaw Agate
- Knife River beachesTop pick in MinnesotaLake County, Minnesota · 55 mi awayLake Superior Agate
Big Bay Town Park FAQ
Why is Big Bay Town Park one of the best rockhounding spots in Wisconsin?+
Where is Big Bay Town Park?+
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More rockhounding in Wisconsin
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