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Cadastral Reference

Cadastral Reference is the spatial grid of township, range, section, quarter-quarter lines, special surveys, mineral surveys or any line or corner established by a federal survey generally referred to as the Public Land Survey System (PLSS). BLM and the workgroup are developing ways to improve CadRef and publish one version.


Renee Bettis
Idaho Dept. of Lands
(208) 334-0216



Idaho has a statewide Cadastral Reference base map that is:
  • Seamless;
  • Meets accuracy needs and standards;
  • Easily accessible to the GIS community and the public;
  • Digital;
  • Mutually beneficial to both the data producers and the data consumers;
  • Continually maintained;
  • Supports a multi-purpose land information system;
  • Strives to comply with appropriate state and national standards, and
  • Will continue to be improved over time.

Goals and Objectives

  • Describe the current status of the GCDB and 24K PLSS across the state including statements of accuracy.
  • Inventory and describe the current uses of the GCDB, 24K PLSS and local cadastral reference systems for GIS mapping, especially parcel mapping.
  • Document and present what has been shown to be possible at a local, regional, and state level, using examples of successful systems.
  • Develop and implement, short-term, temporary procedures to assist with various GIS cadastral reference data needs while more long-term permanent solutions are being developed.
  • Establish an education and outreach program supporting the vision.
  • Work with BLM and local stakeholders to accomplish GCDB accuracy enhancement in priority areas.
  • Establish a central web based application that would allow licensed land surveyors to input control point and other monument coordinates with accompanying metadata, and make it accessible to other surveyors and the general public.
  • Promote the use of standards for reporting control data.
  • Where appropriate, use the information placed in the central control point database to enhance the GCDB.
  • Promote legislation and public policy including developing a funding mechanism to support the vision.

Scope of Cad Ref Pilot with BLM

Idaho GLO Survey Plats




News and Events

  • IGC-EC Meeting
    Thu, November 15, 2018
    9:30 - 11:30 am (Mountain)
    JRW Building
    East Conference Room
    700 W. State St., Boise

  • Imagery TWG Meeting
    Wed, February 6, 2018
    10:00 am (Mountain)
    Idaho Water Center
    322 E. Front St., Room 602D, Boise
    (Corner of Front St. and Broadway)

  • Hydrography TWG
    Thu, March 14, 2019
    9:00 - 11:00 am (Mountain)
    Idaho Water Center
    322 E. Front St., Conf. Room 549F
    Boise, Idaho
    (Corner of Front and Broadway)

  • Suggested Uniform Contract Text for Delivery of Survey Data to MCPD (Multistate Control Point Database)