Datasets Activity Stream About Order by Relevance Name Ascending Name Descending Last Modified Go 1 dataset found Formats: JPEG Tags: permafrost Filter Results Prudhoe Bay Cumulative Impact Map B: Raynolds 2014 Map B of the historical infrastructure changes for the Prudhoe Bay Oilfield for 10 dates from the initial oil discovery in 1968–2011. Aerial photos taken in 1949 and 1968 were... JPEG ZIP PDF PNG