Lower Colorado River Hydrologic Monitoring

Boundaries

County

State

Study Area

Hydrogeologic Features

Faults

Watersheds

Canals
All-American Canal
Other

Monitoring Network

 USGS Streamgages

Water-Level Sites
  Active (Continuous)
  Active
  Inactive

Water Quality Sites
  Active
  Inactive

Microgravity Sites

 Absolute
 Relative