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USGS Upper Klamath Basin Well Mapper

March 5, 2024

This mapper identifies wells that are monitored in the Upper Klamath Basin Oregon and California by U.S. Geological Survey (USGS), Oregon Water Resources Department (OWRD), and California Department of Water Resources (CDWR). This web page provides access to current and historic groundwater-level data collected by those agencies, as well as water-level graphs and maps.