News Posted March 4, 2015 Share Posted March 4, 2015 The Grand Portage National Monument is a former fur trading site full of conifers, wetlands and beaver dams - a history and landscape that may be behind the toxic mercury loads in the monument's streams.More... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now