Rock Springs Grazing Association

[Land & Building Development]

Sweetwater County, Wyoming

Client challenge:

The land manager of the 600,000-acre Rock Springs Grazing Association needed a way to map and manage leases, surface owner agreements (SOA) and other land use issues that occur over a vast geographical area in Sweetwater County, Wyoming.

Coffey solution:

Coffey created a customized, user-friendly GIS platform to catalog and manage the lands, creating a vital link to information that is essential to current and future grazing operations in the area.

  • Researched and combined the following isolated and discrete records into a comprehensive electronic dataset:
    • GIS parcel ownership data from the county assessor’s office.
    • Public land data from State and Federal GIS data warehouses.
    • Hard-copy maps provided by RSGA of known land assets.
  • Used the comprehensive electronic dataset to perform the following customized functions for the client:
    • Perform gap analysis of spatial and tabular information to create a new comprehensive ownership layer.
    • Develop a point snap-grid as a parcel sub-set from the BLM Geographic Coordinate Data Base (GCDB) Quarter-Quarter dataset, taking into account the many irregularities of the PLSS map information.
    • Create ownership polygons using the GCDB-derived snap-grid for all land records obtained through BLM and county research. Edit layer using RSGA maps and documents.
    • Establish layers for lease points and lease right-of-ways, and create surface owner agreements polygons, based on Access database information.
    • Determine active oil and gas well layer from tabular information provided by Wyoming Oil and Gas Commission. Analyze and attribute SOA data with current, past or no-well information.
    • Create a GIS data viewer showing all available information in a series of subject-related map views.

Ongoing benefits:

The Rock Springs Grazing Association continues to work with Coffey to further refine existing data layers and to populate new layers as other land use studies are commissioned. Coffey’s user-friendly GIS platform makes updates and long-term maintenance of the existing data highly streamlined. The project is adaptable to new software releases and can easily transition from a deployed, static application to a real-time server or Internet-based application for both use and data upkeep.

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