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Douglas County  4380
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Pay Range GC16


The classifications in this two-level series perform duties associated with developing and maintaining the County cadastral mapping system.  Incumbents apply cartographic principles and practices to maintain records, cadastral and geographic information system (GIS) maps aiding the Assessor's Office in the identification, location, inventory and mapping of land for assessment and valuation of property.  All positions prepare a variety of cartographic maps, solve problems requiring knowledge of the subject matter of surveying, mapping and legal ownership.  Individual positions perform, at varying levels of difficulty, all types of cartographic projects from basic preparation of partitions, segregations and consolidations to more complex projects requiring research and resolution of ownership, boundary and taxing district issues.

This classification is journey-level in the cartographer/GIS technician series, and is distinguished by performing complex cartographic functions, by a greater degree of independence, judgment and responsibility.

EXAMPLES OF PRINCIPAL DUTIES  (Duties assigned to this classification include, but are not limited to, the following examples.  Any one position may not perform all listed tasks.)

1. Plot annexations, formations, mergers, consolidations and withdrawals of taxing districts on code and cadastral and/or GIS maps; record changes on maps, tax lot records and assessment rolls; prepare new boundary maps for new districts.

2. Prepare segregation, consolidations and partitions of property by using coordinate geometry in plotting new boundaries on maps and computing acreage of new parcel(s), assign new tax lot and account number and prepare new prints of revised maps for map books.

3. Develop, use and maintain maps using the GIS-based mapping system to construct complex maps such as base control maps, cadastral maps and specialized maps from beginning to finalization; revise maps to conform to official government land surveys, highway maps, BLM public land surveys and new aerial photos.

4. Receive and review deed records and other instruments indicating ownership changes of property and change assessment roll, tax lot card and other pertinent records.

5. Review subdivision and condominiums for conformance to statutes and revise maps and assessment roll to conform and reflect new subdivisions or condominiums.

6. Utilize the GIS system to input and update basemaps, plot, compare to existing maps and analyze differences, and to determine and present information in cartographic and statistical formats.

7. Perform extensive title searches to determine ownership on questioned properties; review ownership boundary, taxing district, tax code area issues; interpret legal descriptions; assist other departments, agencies and the public with property questions or complaints regarding cadastral and/or GIS maps and records.

8. Maintain those portions of the GIS database Assessor is responsible for; work with other GIS users and the Department of Revenue to protect the integrity of the GIS application for the Assessor and other users of the GIS system.

9. Prepare and maintain records, reports and statistical data.


Knowledge of: Considerable knowledge of cartographic principles, practices and techniques involved in the preparation of appraisal maps including coordinate geometry and spatial data analysis; considerable knowledge of mathematics including algebra, geometry and trigonometry; basic knowledge of surveying and engineering principles and practices; considerable knowledge of legal property descriptions, deed records, survey files and other documents pertaining to boundary and ownership of property; knowledge of computer-based mapping and processes to develop maps utilizing the GIS system; reasonable knowledge of the Oregon Administrative Rules as applied to preparation of cadastral maps.  Skill in: Using calculator, automated equipment and systems; drafting instruments, planimeter and blue print machine, other job-related equipment; writing clear and concise records, reports and statistical data. Ability to: Operate and use various computers, computer-aided devices and software such as graphic workstations, PCs and digitizer; interpret and translate geographic data using coordinate geometry and spatial analysis; communicate effectively in both oral and written forms; understand and interpret deeds and legal property descriptions; conduct records searches; work independently and manage time efficiently; make decisions independently in accordance with established policies and procedures and use initiative and judgment in completing tasks and responsibilities; utilize problem identification and resolution techniques; courteously meet and deal effectively with other employees, professionals, title companies, courts, other agency representatives, real estate agents, utility companies and the public.

Education, experience and training: - Associate's degree in cartography, land surveying, engineering technology, GIS, or related field and two years cartographic experience in an Assessor's Office OR a satisfactory equivalent combination of education, experience and training.


Work is performed under the general direction of the cartographer/GIS supervisor.  Recurring routine assignments are independently performed by employee on basis of past experience.  The employee receives general instructions regarding the scope and approach to projects or assignments, but procedures and problem resolution are left to employee discretion and interpretation.  Employee estimates and manages time efficiently.  Work is spot-checked to assure acceptable performance and supervisor is available to assist with new or unusual assignments.


Work is performed within department policy and procedures; state and county statutes, rules and regulations; Manual of Cadastral Map Standards, Concepts and Cartographic Procedures; various state and technical manuals.  The guidelines provide a basis for employee decisions and there is only occasional need to exercise significant judgment or discretion to solve procedurally or technically complex problems; when encountering a difficult problem employee refers to supervisor.


Regular and consistent attendance is required.  Work is performed in an office environment which may require bending, hearing voice conversations, keyboarding, lifting up to 14 pounds, reaching, standing, stooping and walking.  Involves a significant amount of time viewing computer monitors.

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please email the Human Resources department.