Summary

Description

This data set includes 22 georeferenced images, acquired on November 7th and 9th, 1965, over portions of Bear River Migratory Bird Refuge, in Box Elder County, Utah. The frames were downloaded from Earth Explorer USGS and georeferenced within ArcGIS. The image files are named by frame number and can be referenced in the attached map. These images are georeferenced versions of original black and white aerial photographs downloaded from Earth Explorer USGS. The original photo was georeferenced against the Box Elder County 2014 NAIP images. There are 22 total frames in this collection covering all of the impounded areas of the refuge. The reference map can be used to identify locations of the images in relation to the refuge boundary. These images provide a valuable look back in time before the major flooding which occurred in the early 1980s which the Great Salt Lake covered nearly all of the refuge. Flooding conditions remained for 56 years. These images given their high resolution; resolution 0.66 meters allow delineation of landscape features and habitats including original infrastructure including levees and roads, distribution of emergent vegetation, etc. Change over time estimates can be made from these images using current imagery for comparison. These images, and others from 1937, are being used by refuge staff to assist in understanding and visualizing the historical content of the lands within the refuge and how they have changed over the last 80 years. Pixel resolution of these images is 0.66 meters. These images should be used for resourcelevel interpretation only.