Wells monitored by the USGS in Long Valley caldera, California
The USGS monitors ground-water levels and other characteristics of many wells in Long Valley. Click on the well names on the map to learn more about each well. Check this web page often as additional well names will become active. The sites colored red indicate that parameters are measured at least hourly using electronic transducers and recording dataloggers. Click here if you'd like the text-only version of this webpage.
