To view benchmarks reports and USGS quadrangles, zoom the map to the county level and click on the selected region. For help, see the tips section at left for instructions on panning, zooming, and selecting the bench mark reports.
The USGS reports available from this site are from the records of the Indiana Department of Natural Resources, Division of Water. They may no longer represent the latest version of the report. Users may wish to contact USGS at (573) 308-3500 or (888) ASK-USGS to confirm that the elevation of a mark they wish to use is still current.