About this location
This coordinate lands on Torch Lake in Houghton County, on Michigan's Upper Peninsula — not the better-known Torch Lake in Antrim County on the Lower Peninsula. That distinction matters: this Torch Lake is a documented EPA Superfund site, with roughly 200 million tons of copper mill stamp sands dumped into it during a century of copper milling, filling about a fifth of the lake's volume and leaving sediment contaminated with copper to depths of 70 feet in places. Neither of the DB's listed specimens — Petoskey stone and general "fossil" — fits this location's actual geology, which is worth flagging clearly up front.
Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.
Found Here
UNVERIFIED for both listed specimens. Petoskey stone (fossilized Hexagonaria coral) is documented from Devonian-age limestone shoreline in the northwestern Lower Peninsula (Petoskey, Charlevoix, Little Traverse Bay) — a different geologic province roughly 200 miles from this Upper Peninsula location. No source found ties Petoskey stones or Devonian coral fossils to Houghton County's Precambrian volcanic and sedimentary Keweenawan rift rocks, which is the actual bedrock here.
Difficulty
Getting there
Not established — no specific public beach access point at this coordinate was confirmed.
Collecting here
Not established. Given the specimen mismatch and Superfund status, this page shouldn't point people toward digging or beachcombing here without further verification.
Know before you go
This is a federally designated Superfund site due to heavy-metal (copper) contamination in lake sediment — that alone is a reason for caution independent of the specimen question. Land status, public access, and any current health advisories were not confirmed in this research pass. Check EPA's Torch Lake Superfund site page and Michigan EGLE directly before visiting for recreation or collecting.
Location on Map
Coordinates: 47.15014, -88.45596
Nearby rockhounding locations
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- Champion Mine Dump — Hematite, SapphiteMI · 49.5 mi
- Manitou Island — Lake Superior AgateMI · 42.9 mi
More Fossil locations in Michigan
Frequently asked questions
Can you find Petoskey stones at Torch Lake, Houghton County, Michigan?
No documented source supports this — Petoskey stones come from a different Michigan geologic province (the northwestern Lower Peninsula), roughly 200 miles from this Upper Peninsula lake.
Why is Torch Lake in Houghton County a Superfund site?
Roughly 200 million tons of copper mill stamp sands were dumped into the lake during a century of copper milling, contaminating lake sediment with copper to depths of up to 70 feet in places.
Is Torch Lake in Houghton County the same as the popular Torch Lake near Petoskey?
No — that's a different, unrelated lake of the same name in Antrim County, on Michigan's Lower Peninsula.
Is it safe to collect rocks or beachcomb at Torch Lake, Houghton County?
Not verified — given the Superfund designation, confirm current health guidance from EPA and Michigan EGLE before treating this as a recreational collecting spot.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Sources
- https://en.wikipedia.org/wiki/Torch_Lake_(Houghton_County,_Michigan) — location, Superfund/stamp sands history.
- https://en.wikipedia.org/wiki/Torch_Lake_(disambiguation) — confirms two distinct Torch Lakes exist in Michigan.
- https://www.michiganrvandcampgrounds.org/petoskey-stone-beaches/ (via search) — confirms Petoskey stones associated with northwestern Lower Peninsula beaches, not Houghton County.
- Coordinate cross-check against both Wikipedia pages — 47.15014, -88.45596 matches Houghton County's Torch Lake, not Antrim County's (which sits around 44.9–45.2°N).
Recommended Gear for Michigan
Estwing E3-22P Rock Pick
The industry-standard 22oz geological hammer. One-piece forged steel with shock-reduction grip.
Clear Anti-Fog Safety Glasses (4 Pack)
Adjustable, anti-fog lenses for clear vision in any conditions. About $5 per pair.
Watertight Medical Kit
Compact, waterproof first aid kit with bandages, moleskin, and field essentials.
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