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Place
- #45 Jewels Island, Casco Bay1
- Allegheny1
- Calabash, Conte Morne Range1
- California2
- Canyon of Snow Basin Creek, west of Plaskett Meadow1
- Clackamas1
- Columbia Gorge, banks of sandy river, NE Multnomah county1
- Columbus1
- Coshocton1
- Ecuador1
- Glenn1
- Hills of Hood Peak Range, east of Agus Caliente1
- Maine1
- Michigan1
- Monroe1
- Multnomah1
- North America10
- North Appalachian Experimental Watershed, near Coshocton1
- North Carolina1
- Ohio1