Chalons Terminal District, PDC (Source: Jim Nichols) Billy-leGrand POL Depot: A higher resolution aerial photo from 1967 (IGN) is used here to show more detail than the original 1958 image. The Quonset huts are missing and there is a pad where another building was located on the 1958 image. I have marked those features that are releveant for 1958 discussion with a yellow dot. (If anyone has details on any of the buildings that were torn down or added to the facility after 1958, please contact the webmaster.)