Changes in the potentiometric-surface altitude of the confined aquifer, Wood River Valley aquifer system, south-central Idaho, October 2006 to October 2012.
Water levels in 93 wells completed in the Wood River Valley aquifer system were measured during 
October 22–24, 2012; these wells are part of a network established by the U.S. Geological Survey 
in 2006. Maps of the October 2012 water-table altitude in the unconfined aquifer and the potentiometric
-surface altitude of …