Indiana Code Title 36. Local Government § 36-2-12-11

(1) a record and an index by location of all the original government survey corners;

(2) outline maps of each section, grant, tract, and subdivision or group of sections, grants, tracts, and subdivisions in the county showing the location of each corner on record and stating at the location of each corner on the map where the reference for that corner may be found;  and

(3) a reference index for each corner.

(1) the location of the corner;

(2) an accurate description of the monument used to mark the corner such as “stone” or “iron pin”;

(3) the distance and bearings from the corner to three (3) or more permanent objects or structures;

(4) the date the corner was last checked and the condition of the monument and references;

(5) the name of the county surveyor making the check;  and

(6) the method of establishing or relocating the corner.

(1) Each year the county surveyor shall check and reference at least five percent (5%) of all corners shown in the corner record book.

(2) The county surveyor may enter in the county surveyor's corner record book the findings submitted by a private, professional surveyor who checks and references corners and is registered under IC 25-21.5.