Tobin Harbor Area: Agate & Carnelian Rockhounding in Keweenaw County, Michigan
- Minerals reported
- 3
- Best months
- April to October
Tobin Harbor Area is a mapped rockhounding spot in Keweenaw County, Michigan. Reported finds include agate, carnelian, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.
Plan your visit
Permission required before collecting
- County
- Keweenaw County
- State
- Michigan
- Nearest road
- Stoll Trail
- Coordinates
- 48.16542, -88.46346
Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.
Land & collecting status
Permission required before collecting
Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.
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.
Best time to visit Tobin Harbor Area
Comfortable months (45 to 90°F highs)
Best months: April to October. Typical highs run 72°F in midsummer and 26°F in midwinter, with winter lows near 15°F.
Climate normals: NOAA 1991-2020 monthlies, COPPER HARBOR station (55 mi away).
Today's weather
Is today a good day to go?
The app shows live weather, recent rain, and a daily rockhounding score for Tobin Harbor Area.
Get the appSources & 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:
- Michigan DNR, Rockhounding rules
- Michigan Geological Survey
- Isle Royale National Park, Rules
- Community submissions reviewed against published agency rules
Found at Tobin Harbor Area
Each name 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 Tobin Harbor Area.
- Siskiwit Lake (South Side)Keweenaw County, Michigan · 20 mi awayChlorastrolite
- Carnelian beachKeweenaw County, Michigan · 31 mi awayAgate Nodule, Carnelian, Quartz
- Esrey ParkKeweenaw County, Michigan · 52 mi awayGranite, Prehnite, Copper
- Central MineKeweenaw County, Michigan · 54 mi awayCopper, Chlorastrolite
- Cliff NorthKeweenaw County, Michigan · 55 mi awayCopper, Calcite, Chlorite
- Cliff MineKeweenaw County, Michigan · 55 mi awayCopper, Calcite, Chlorite
- Gratiot River County ParkKeweenaw County, Michigan · 57 mi awayFreda Sandstone, Basalt, Rhyolite
- Iroquois MineKeweenaw County, Michigan · 58 mi awayNative Copper
Across the state line from Tobin Harbor Area
Tobin Harbor 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.
- Pigeon PointCook County, Minnesota · 49 mi awayChalcocite, Chalcopyrite, Pyrite
- Arrowhead ParkCook County, Minnesota · 77 mi awayLake Superior Agate
Tobin Harbor Area FAQ
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More rockhounding in Michigan
See all 119 Michigan spots →
Open Tobin Harbor Area on the map
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