What is Snake River Plain?
[[Image:Big Southern Butte at Craters of the Moon NM-750px.JPG|thumb|right|One of many volcanic features in the Snake River Plain is Big Southern Butte, seen here]] The '''Snake River Plain''' is a [[valley]] in the [[U.S. state]] of [[Idaho]]. It covers most of the southern part of the state and is transected by the [[Snake River]]. The Snake River Plain was formed by [[magma]] rising up below the [[North American Plate]]. As the plate moved westward, the magma melted rock under the plate. This melting caused the surface to drop and form the Snake River Plain. Underneath the plain is the Snake River [[Aquifer]]. The aquifer is fed by the Snake River and its [[Tributary|tributaries]]. Much of the [[soil]] in the Snake River Plain is [[fertile]]. As a result, today the primary human purpose of the plain is for [[agriculture]]. {{US-geo-stub}} [[Category:Geography of Idaho]] [[Category:Landforms of the United States]]