1. Configuration of the water table and depth to water, spring 1980, water-level fluctuations, and water movement in the Snake River Plain Regional Aquifer System, Idaho and eastern Oregon Yale Public content 1988. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Map Distribution. English. Public. Snake River Plain (Idaho and Or.).