Place
- Ottawa NF4
- Along old US-2.3
- Baraga3
- Cedar Lake, in Group Camp area, Sylvan Twp3
- East of Forest Hwy 16, Ottawa National Forest3
- Fiborne Quarry3
- Houghton3
- Isle Royale National Park, Passage Island. Sect. 4, T67N, R32W3
- Washtenaw3
- Antrim2
- Ca. 0.25 mi north of county Road 206, Ottawa National Forest2
- Crawford2
- Forest Twp, near quarry2
- Hendricks Quarry.2
- Houghton Co.2
- Iosco2
- Kalkaska2
- Luce2
- Midland2
- Missaukee2