The COGO Parcel Drafter is used by Field officers, Farmers and other mapping technicians to map plots, parcels, enter metes-and-bounds descriptions and check for closure errors.To view the mapped croplands, visit the FarmingPRO AgriTEQ platform via the website

For plats recorded prior to 1995, the boundaries were digitized by temporary employees using an ARCVIEW application. All subsequent plats are put into GIS using coordinate geometry (cogo). New plats and partitions are entered into GIS on a weekly basis.

Polygon feature class of the Parcel boundaries in Chesterfield County, VA.

Originally obtained in 1992 from Landmark.

Daily COGO'd into GIS from recorded plats.

Stormwater easements (ex: storm drainage, storm sewer, floodplain) as captured from recorded plats using coordinate geometry (COGO) capture method. All easements are contained within the Fairfax County boundary.

Covers Natrona County. Including City of Casper, towns of Bar Nunn, Evansville, Mills, Edgerton & Midwest. Original First Division polygons were created from Plat Scans. This layer is updated continuously due to the introduction of new Subdivisions by using ArcMAP Traverse tool (COGO) or by using AutoCAD .dwg files. Spatial coordinate system is NAD 1983 StatePlane Wyoming East Central Zone 4902 Feet. This data is in SDE format.

Polygon feature class of the Subdivision boundaries in Chesterfield County, VA. Boundaries of subdivsions and subdivision sections have gone through the formal subdivision review process. Tentative subdivisions are not included in this layer.

Originally obtained in 1992 from Landmark.

Daily COGO'd into GIS from recorded plats.

This layer contains polygons representing parcel ownership for Allamakee County, Iowa. It represents map features similar to those previously shown on hand drawn tax maps. The geometry was created by the Schneider Corporation using coordinate geometry (COGO) software in an ArcGIS environment. Individual parcel features were digitized from official recorded documents when available. Special care was taken to correlate map features with survey controlled coordinate values of the Public Land Survey System (PLSS).

The geometry of parcels were created by Carver County's Survey department using COGO in an AutoCad environment. The AutoCad lines have been imported into a ArcGIS Geodatabase and polygons built. These polygons are attributed with a Parcel Identification Number (PID). The GIS polygons are joined by PID to the Assessor's CAMA system and Taxpayer Services tax database to show attributes of the property.

Polygon layer of zoning districts; arcs contain COGO attributes; polygons contain zoning code, zoning name, zoning type and polygon shade symbol. View detailed metadata.

This dataset was developed to provide the spatial component of recorded Institutional Controls (ICs) for managed facilities of the Indiana Department of Environmental Management (IDEM). IDEM Office of Land Quality uses a system of risk-based closure to address releases of hazardous substances or petroleum. When contamination remains on site, a legal or administrative measure called an Institutional Control (IC) may be needed. An IC protects human health and the environment by restricting property activity, use, or access to minimize exposure to contamination.Institutional Control (IC) polygons were created by Coordinate Geometry (COGO) from recorded Environmental Restrictive Covenants (ERCs) and other Institutional Controls (ICs) mandated by the Indiana Department of Environmental Management (IDEM). Also included is information such as the site address, county, city, IDEM cleanup program overseeing the project, and the types of land use restrictions applicable for the site and a link to view the actual IC document using IDEM’s Virtual File Cabinet.

Parcels delineate the approximate boundaries of property ownership as described in Napa County deeds, filed maps, and other source documents. Parcel boundaries in GIS are created and maintained by the Assessor’s Division Mapping section and Information Technology Services. There are approximately 51,300 real property parcels in Napa County. Parcels delineate the approximate boundaries of property ownership as described in Napa County deeds, filed maps, and other source documents. GIS parcel boundaries are maintained by the Information Technology Services GIS team. Assessor Parcel Maps are created and maintained by the Assessor Division Mapping Section. Each parcel has an Assessor Parcel Number (APN) that is its unique identifier. The APN is the link to various Napa County databases containing information such as owner name, situs address, property value, land use, zoning, flood data, and other related information. Data for this map service is sourced from the Napa County Parcels dataset which is updated nightly with any recent changes made by the mapping team. There may at times be a delay between when a document is recorded and when the new parcel boundary configuration and corresponding information is available in the online GIS parcel viewer.From 1850 to early 1900s assessor staff wrote the name of the property owner and the property value on map pages. They began using larger maps, called “tank maps” because of the large steel cabinet they were kept in, organized by school district (before unification) on which names and values were written. In the 1920s, the assessor kept large books of maps by road district on which names were written. In the 1950s, most county assessors contracted with the State Board of Equalization for board staff to draw standardized 11x17 inch maps following the provisions of Assessor Handbook 215. Maps were originally drawn on linen. By the 1980’s Assessor maps were being drawn on mylar rather than linen. In the early 1990s Napa County transitioned from drawing on mylar to creating maps in AutoCAD. When GIS arrived in Napa County in the mid-1990s, the AutoCAD images were copied over into the GIS parcel layer. Sidwell, an independent consultant, was then contracted by the Assessor’s Office to convert these APN files into the current seamless ArcGIS parcel fabric for the entire County. Beginning with the 2024-2025 assessment roll, the maps are being drawn directly in the parcel fabric layer.Parcels in the GIS parcel fabric are drawn according to the legal description using coordinate geometry (COGO) drawing tools and various reference data such as Public Lands Survey section boundaries and road centerlines. The legal descriptions are not defined by the GIS parcel fabric. Any changes made in the GIS parcel fabric via official records, filed maps, and other source documents are uploaded overnight. There is always at least a 6-month delay between when a document is recorded and when the new parcel configuration and corresponding information is available in the online parcel viewer for search or download.Parcel boundary accuracy can vary significantly, with errors ranging from a few feet to several hundred feet. These distortions are caused by several factors such as: the map projection - the error derived when a spherical coordinate system model is projected into a planar coordinate system using the local projected coordinate system; and the ground to grid conversion - the distortion between ground survey measurements and the virtual grid measurements. The aim of the parcel fabric is to construct a visual interpretation that is adequate for basic geographic understanding. This digital data is intended for illustration and demonstration purposes only and is not considered a legal resource, nor legally authoritative.SFAP & CFAP DISCLAIMER: Per the California Code, RTC 606. some legal parcels may have been combined for assessment purposes (CFAP) or separated for assessment purposes (SFAP) into multiple parcels for a variety of tax assessment reasons. SFAP and CFAP parcels are assigned their own APN number and primarily result from a parcel being split by a tax rate area boundary, due to a recorded land use lease, or by request of the property owner. Assessor parcel (APN) maps reflect when parcels have been separated or combined for assessment purposes, and are one legal entity. The goal of the GIS parcel fabric data is to distinguish the SFAP and CFAP parcel configurations from the legal configurations, to convey the legal parcel configurations. This workflow is in progress. Please be advised that while we endeavor to restore SFAP and CFAP parcels back to their legal configurations in the primary parcel fabric layer, SFAP and CFAP parcels may be distributed throughout the dataset. Parcels that have been restored to their legal configurations, do not reflect the SFAP or CFAP parcel configurations that correspond to the current property tax delineations. We intend for parcel reports and parcel data to capture when a parcel has been separated or combined for assessment purposes, however in some cases, information may not be available in GIS for the SFAP/CFAP status of a parcel configuration shown. For help or questions regarding a parcel’s SFAP/CFAP status, or property survey data, please visit Napa County’s Surveying Services or Property Mapping Information. For more information you can visit our website: When a Parcel is Not a Parcel | Napa County, CA

Data last synced 11-21-2025 04:27. Data synced on a Weekly interval.

This data set represents external school district boundaries in Utah. Changes and updates are through certification by the Lt. Governor’s Office sent in by School District Offices. Data developed with coordinate geometry (COGO) from legal descriptions for the creation and annexations to districts which are also tax entities. The attribute for TOTENROLL is the Public School Enrollment for October 2015 based on Utah State Office of Education2015-16 Fingertip Facts http://www.schools.utah.gov/data/Fingertip-Facts/2016.aspxBoundaries Boundaries current thru March, 2017

Originally created in the late 80's from GAC plats using COGO, differences were resolved with survey department. Data was converted off the Wang in 1994 into ESRI format.

Non-Tax Fee entities are government entities who do not levy taxes. They include single-purpose entities, such as local and special service districts which are funded through collection of fees for services, mineral lease monies or other non-tax funding alternatives. They also include redevelopment agencies that collect incremental tax funds from governmental taxing entities.This dataset was first created through a cooperative effort of the Office of the Utah State Auditor, the Utah State Tax Commission, and UGRC. All entities in the state through September of 2016 were initially represented. Updates for further annexations and deannexation will be completed with the cooperative efforts of the Office of the Utah State Auditor, State Tax Commission, Property Tax Division, and UGRC. Data developed with information provided by the entities, including coordinate geometry (COGO) from legal descriptions were used, historical records, generalized description based on known locations, drawings on maps. When necessary the data were adjusted to conform to known physical features. Due to adjustments to resolve conflicting or ambiguous data, the result was more a physical cadastre than a legal one. In other words, this dataset does not represent exact legal boundaries as per surveyed description, but, rather a set of boundaries used for the administrative purposes that conforms to logical & administrative rules, (e.g. no redevelopment areas may cover the same geographic extent).

Tax entities include all incorporated bodies that have the power to levy a local property tax such as school districts, counties, cities, special service districts, redevelopment districts, etc. This dataset was first created through a cooperative effort of the Governor's Office of Planning and Budget, the Utah Department of Transportation, the Utah State Tax Commission, and AGRC. All incorporated tax entities in the state through dates varying from 1984 to 1992 were initially represented. Updates for further annexations and de-annexations were completed with the cooperative efforts of the State Tax Commission, Property Tax Division, and UGRC, and currentness is through the end of the 2024 calendar year. Data developed with coordinate geometry (COGO) from legal descriptions were used. When necessary the data were adjusted to conform to known physical features. Due to adjustments to resolve conflicting or ambiguous data, the result was more a physical cadastre than a legal one. In other words, this dataset does not represent exact legal boundaries as per surveyed description, but, rather a set of boundaries used for the administrative purposes that conforms to logical & administrative rules (e.g. no two cities or redevelopment areas may cover the same geographic extent).This data is for 2024. Rates will be available in Sept.

These data were created for display and analysis of Utah tax entities for the 2025 year.Tax entities include all incorporated bodies that have the power to levy a local property tax such as school districts, counties, cities, special service districts, redevelopment districts, etc. This dataset was first created through a cooperative effort of the Governor's Office of Planning and Budget, the Utah Department of Transportation, the Utah State Tax Commission, and AGRC. All incorporated tax entities in the state through dates varying from 1984 to 1992 were initially represented. Updates for further annexations and de-annexations were completed with the cooperative efforts of the State Tax Commission, Property Tax Division, and UGRC, and currentness is through the end of the 2025 calendar year. Data developed with coordinate geometry (COGO) from legal descriptions were used. When necessary the data were adjusted to conform to known physical features. Due to adjustments to resolve conflicting or ambiguous data, the result was more a physical cadastre than a legal one. In other words, this dataset does not represent exact legal boundaries as per surveyed description, but, rather a set of boundaries used for the administrative purposes that conforms to logical & administrative rules (e.g. no two cities or redevelopment areas may cover the same geographic extent).This data is for 2025.

Covers Natrona County. Including City of Casper, towns of Bar Nunn, Evansville, Mills, Edgerton & Midwest. The original Plat polygons were created from Plat scans to create parcels. This layer is updated continuously due to the introduction of new Subdivisions by using ArcMAP Traverse tool (COGO) or by using AutoCAD .dwg files. Spatial coordinate system is NAD 1983 State Plane Wyoming East Central Zone 4902 Feet. This data is in SDE format.

These data were developed from record maps (MR/PM/RS) through a traverse program (COGO) to precisely locate the centerline using true arcs and lines. The data was intended to solve problems with alignment issues by separating out the data that was COGO created versus the data that was created by offset from the parcels. This feature class is no longer being maintained.

United States Public Land Survey System (Township, Range, and Sections)Where possible, section lines have been drawn from Lot Lines COGO feature class. Where Lot Lines COGO features are not available, lines will be less accurate. For general reference only.