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What is a Watershed?

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As we were discussing rivers in the U.S. We asked What is a Watershed?
Any copyrighted material used in this video is done so for purposes of education, review and/or satire and thus covered by "Fair Use". No ownership is claimed for any such materials other than my own.All images used are public domain; licensed under Creative Commons with attribution; or used with permission.
Any copyrighted material used in this video is done so for purposes of education, review and/or satire and thus covered by "Fair Use". No ownership is claimed for any such materials other than my own.All images used are public domain; licensed under Creative Commons with attribution; or used with permission.