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Aerial photomosaic of John Day Reservoir, 1966
A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-... -
Contour Lines 1993
A line feature class showing 2 ft. and 10 ft. elevation contours. Derived from 1993 digital orthophotos - has not been updated.Because of the size of this dataset, we do not... -
Aerial photomosaic of John Day Reservoir, 1966
A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-... -
Aerial photomosaic of John Day Reservoir, 1966
A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-... -
Contour Lines 1993
A line feature class showing 2 ft. and 10 ft. elevation contours. Derived from 1993 digital orthophotos - has not been updated.Because of the size of this dataset, we do not...