The Disappearing Rivers Of The American West

Humankind has had a huge touching on the rivers of the American West. Nearly one-half of all river miles inwards the West are no longer inwards their natural state. Disappearing Rivers allows you lot to explore how humans bring impacted on rivers inwards the West in addition to how far they bring been unnaturally altered.

Disappearing Rivers is an interactive map which shows the grade to which all the rivers inwards the American West bring been altered past times humankind. All the rivers on the map are color-coded to reverberate the per centum that each river has been altered. This is the combined per centum of floodplain in addition to river menstruation which has been altered past times human beings. H5N1 drop-down card allows you lot to alter the map layer to present river & flow menstruation restriction or altered floodplains instead.

If you lot lead the 'Threats' pick you lot tin post away thought dams, major human diversions, culverts in addition to bridges on the map. If you lot lead the pick to thought dams thus scaled markers are added to the map. These markers present the locations in addition to the sizes of river dams inwards the West.

Disappearing Rivers includes a detailed await at 1 river to highlight the form of change that rivers bring suffered inwards the American West. Over one-half the Colorado River is dammed, diverted or otherwise altered from its natural state. Disappearing Rivers uses a flush map format to go along the Colorado River, showing how agriculture, irrigation runoff, nearby mines, dams in addition to diversions bring combined to alter the natural soil of the river.