These are the cadastral reference features that provide the basis and framework for parcel mapping and for other mapping. This feature data set contains PLSS and Other Survey System data. The other survey systems include subdivision plats and those types of survey reference systems. This feature data set also include feature classes to support the special conditions in Ohio. This data set represents the GIS Version of the Public Land Survey System including both rectangular and non-rectangular surveys. The primary source for the data is cadastral survey records housed by the BLM supplemented with local records and geographic control coordinates from states, counties as well as other federal agencies such as the USGS and USFS. The data has been converted from source documents to digital form and transferred into a GIS format that is compliant with FGDC Cadastral Data Content Standards and Guidelines for publication. This data is optimized for data publication and sharing rather than for specific "production" or operation and maintenance. This data set includes the following: PLSS Fully Intersected (all of the PLSS feature at the atomic or smallest polygon level), PLSS Townships, First Divisions and Second Divisions (the hierarchical break down of the PLSS Rectangular surveys) PLSS Special surveys (non rectangular components of the PLSS) Meandered Water, Corners and Conflicted Areas (known areas of gaps or overlaps between Townships or state boundaries). The Entity-Attribute section of this metadata describes these components in greater detail.

Downloaded data on December 11, 2025 from BLM EGIS Hub. Created five fields: Meridian, Township, Range, Section, TRS_Combined. Ran a Python script to parse the First Division Identifier field and populate these fields. This field uses zeros as spaces, leaving some zeros in the new fields. Used Calculate Field with VBScript to remove zeros and Find and Replace in ArcGIS Pro to convert meridian numbers to letters. Reset TRS_Combined to <Null> due to extra zeros, then ran an Arcade script to concatenate the four fields into TRS_Combined.