Yaquina Head Outstanding Natural Area

Ownership	Special Management Areas
Vegetation	Topography

In 1980, the U.S. Congress established Newport, Oregon’s Yaquina Head (a 106-acre site) as an Outstanding Natural Area. The Bureau of Land Management (BLM) manages the Yaquina Head to preserve its natural, historic, scenic, educational, and recreational value for present and future generations. This Outstanding Natural Area includes a historic lighthouse, interpretive center, and handicapped-accessible tide pools.

A detailed digital atlas of Yaquina Head Outstanding Natural Area (YHONA) was designed and constructed. This atlas enabled BLM and the public to visualize and analyze resource planning and facilities management information for the area.

Aerial photography was required to build this detailed dataset. From these stereo pairs, BLM photogrammetrically mapped the topography, facilities, and features of YHONA. ArcGIS 9 Desktop was used to import, categorize, and organize DXF layers into a personal geodatabase format. All edits and additions to boundaries, cadastre, vegetation, and recreation information were made to the project with ArcGIS 9. Contours were converted to a detailed two-foot elevation model using ArcGIS Spatial Analyst and ArcGIS 3D Analyst.

This detailed elevation model and hillshade were used to produce a shaded relief map with elevation tints. Hillshades were also used in other maps to represent topography and elevation. Text labeling features were created and controlled on the finished product with Maplex for ArcGIS. Ortho-corrected aerial photography was draped over an elevation model to produce a unique three-dimensional perspective of the headland and its features using ArcGIS 3D Analyst. Each map in the atlas is produced in an 11-by-17-inch format (1:5,500 scale), and all maps are available for download as JPEGs or PDFs on internal BLM network drives.