The Oregon Map

Introduction

Welcome to the site of the Oregon Cadastral Map System (the Manual). The Manual provides background on the map system, map standards, technical procedures, and legal principles regarding mapping to assist tax administrators and county cartographers in their work with real property. The information in the Manual is also useful for training purposes and as a valuable reference source. Manual Table of Contents

This electronic version has merged the various volumes and chapters of the Manual produced during the last 20 years. As a result, in the electronic version, Volume 4 appears as Chapter 14 and the glossaries were combined.

You may order a paper copy for a fee. You may purchase specific sections of the Manual (listed in the lower left corner of the order form). Click here to download a Publication Order form.

Revenue's Cartographic Unit welcomes any comments, input or corrections to the Manual. Click here to submit your comments via e-mail: map.manual@state.or.us.

The information posted here is converted from the printed Manual and may contain editing errors. It may be freely distributed or copied. However, use of appropriate credit is requested. We strongly recommend that before citing the Manual, the Cartographic Unit be contacted and the original printed Manual be acquired.

History

Writing the original Manual of Cadastral Map Standards, Concepts, and Cartographic Procedures began in the 1950s shortly after the Legislature created the Cartographic Unit within the Department of Revenue. The first manuscript was published in June 1981. Chapters 1, 2 and 3 were revised into Volume 1 of the current Oregon Cadastral Map System and published in June 1989. The addition of Chapter 14 (Volume 4) was complete in August 1988. In 1996 an addendum, Standards for Digital Cadastral Maps modified the graphic standards for printed maps to make them more compatible with Geographic Information Systems (GIS). Chapters 4 through 13 were digitized in the fall of 2002.

Significant credit for writing the Manual goes to Robert A. Mead, former Manager of the Cartographic Unit for his untiring efforts.

DOR Cartographic Unit

The Cartographic Unit is responsible for developing and maintaining statewide assessors' cadastral map standards. The unit contracts with 14 of Oregon's 36 counties to maintain their cadastral maps and also engages in cooperative re-mapping projects with any of the counties that need their cadastral maps brought up to statewide standards.