VESTRA recently assisted Modoc County with creation of a parcel-based GIS. VESTRA's solution for Modoc County consists of parcel layer development complete with:

• Assessor Parcel Number, easily joined to the assessor's Crest database
• Templates and methodology for creating assessor pages as needed
• A consistent ESRI software platform across all County departments using an ArcIMS web viewer for intranet access
• A hardware solution, using terminal services, which uses the existing WAN network as the most cost effective solution

VESTRA constructed the assessor parcels using best available 2005 NAID color orthoimagery and the BLM public land survey (PLS) for best-alignment. Derivative layers can be created from parcels depending on the attributes attained from the assessor's table. These layers often include community service districts, spheres of influence zoning, and tax rate areas.

The package is entirely scalable for growth and serves the GIS data internally to the County departments and the public through the Internet. All deliverables go through rigorous testing, both at VESTRA and onsite at Modoc County, with VESTRA staff setting up, loading, and delivering full documentation, training, and support to County staff.