2-Foot Contours - 1998 (TOPOHPGN)

This dataset contains 2-foot topographic contours derived from the 1998 PAG Regional Orthophoto project. It includes only urbanized areas where digital terrain models (DTMs) are available. Elevations are based on NAVD88, and the dataset includes additional fields such as integer versions of contour elevations and flags for 10-foot contours. For more information, see Pima County's metadata here. Purpose To provide detailed elevation data for urbanized areas in Pima County, supporting planning and development projects. Dataset Classification Level 0 – Open Known Uses Used in urban planning, infrastructure development, and environmental assessments. Known Errors Data may not include all urban areas or reflect changes after 1998. Data Contact Jack Lloyd, Pima County GIS [e-mail] Update Frequency Not maintained