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rockhounding

North Dakota

7 researched sites3 legal to collect
Cannonball concretions, Grant CountyMineral locality · Permission required
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Hell Creek Fossil Country, near MarmarthFossil site · Permission required
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Knife River Flint, Dunn CountyMineral locality · Gray area
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Lake Sakakawea petrified wood shoresFossil site · Gray area
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Little Missouri National Grassland Petrified WoodFossil site · Legal to collect
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Pembina Gorge public fossil digFossil site · Licence or permit
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Pioneer Trails museum digs, BowmanFossil site · Licence or permit
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