20201005 15371400 1.0 TRUE Watershed Boundaries Selected watersheds in Mesa County, bordering the Colorado River.From https://www.milwaukeeriverkeeper.org/whats-a-river-basin-whats-a-watershed/: A watershed is simply the area of land that catches rain and snow and drains or seeps into a marsh, stream, river, lake or groundwater. Both river basins and watersheds are areas of land that drain to a particular water body, such as a lake, stream, river or estuary. In a river basin, all the water drains to a large river. The term watershed is used to describe a smaller area of land that drains to a smaller stream, lake or wetland. There are many smaller watersheds within a river basin.