Imagery data for the Vegetation Mapping Inventory Project of San Juan Island National Historic Park

This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here.

Prior to conducting field visits, existing vegetation maps, soils maps , wetland locations, and 2007 NAIP 6-inch color orthophotos, provided by the NPS, were used to delineate preliminary polygons using ArcGIS™ 9.3.1. Hardcopy maps of the preliminary polygons were produced using ArcGIS™ at 1:2600 scale for non-forested vegetation and 1:1900 scale for forested vegetation.