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NRRI: Delivering impact across the state
Click on a Minnesota county for a list of current NRRI projects.
Contact us
- (800) 234-0054
NRRI Duluth - Labs and Administration
(218) 788-2694
5013 Miller Trunk Hwy
Duluth, MN 55811
Coleraine Labs - Minerals and Metalurgy Labs
(218) 667-4201
PO Box 188
One Gayley Avenue
Coleraine, MN 55722
