Benchmarks are control monuments both vertical and horizontal that have been established by different government entities over the years.
The County Surveyor is responsible for Section Corner Perpetuation. Section Corner Perpetuation is checking, establishing, re-establishing, and referencing all of the government corners within the county.
A High Accuracy Network (HARN) is a 3-dimensional geodetic network of stations established using GPS observations and adjustment.
Read through the process of recording legal surveys set forth by Indiana codes.