Invasive Species are plant and animal species that are not native to a particular area. Typically, invasive species have a negative impact on that area’s environment, health, and/or economy. They pose very real threats. Unfortunately, it is no different for the Carson River Watershed. The Carson Water Subconservancy District (CWSD) works to help coordinate identification and treatment of invasive species on a watershed-wide basis. The CWSD is an agency made up of portions from six counties – one in California and five in Nevada. Their goal is to establish a balance between the needs of the communities within the Carson River Watershed and the function of the river system.