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Benchmarks for Indiana

State Map

Legend

Ohio River Datum (also known as Sandy Hook Datum)

To search for more horizontal and vertical control information visit the National Geodetic Survey.

  • INDOT Benchmarks (317) 610-7251 ext. 290
  • USGS Benchmarks (573) 308-3500
  • Toll Free (888) ASK-USGS

USGS quadrangle maps with the benchmark locations (PDF format)