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Imagery data for the Vegetation Mapping Inventory Project of Natural Bridges National Monument

Published by National Park Service | Department of the Interior | Metadata Last Checked: January 25, 2026 | Last Modified: 2002-01-01T00:00:00Z
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. NCPN contracted with the USDA - Farm Services Agency Aerial Photo Field Office (APFO) to acquire new 23 cm x 23 cm (9 in x 9 in) true color aerial photographs for NABR. The photographs were flown on July 1, 2002 by the subcontractor, Blue Skies Consulting, LLC of Albuquerque, New Mexico. The photography was acquired at a nominal elevation of 6,000 ft (1,829 m) above ground level in a Cessna T210N aircraft. A Wild RC10 camera with 15.2 cm (6 in) lens was used with Kodak Aerocolor negative film. The target scale for this photography was 1:12,000 (1 in = 1,000 ft). The mission was designed such that approximately 30% sidelap occurred between flight lines and 60% overlap occurred between photos, with a minimum sun angle of 45º. The project encompassed 40.7 linear km (25.3 miles) divided among five flight lines and 38 individual photos. Figure 11 is an example of the 23 cm x 23 cm aerial stereo photographs for NABR. These photographs were used for photo interpretation during the mapping phase of the project, as well as by field crews during plot data collection.

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