USGS-issued map of the region around the Oceanus Procellarum (Ocean of Storms), the only of the lunar maria to be called an ocean. The map shows the types of various formations that appear, as identified by pre-Apollo geological investigations of the moon's surface. This work was compiled by H. J. Moore and published in 1967.
The main map shows over twenty formations, most related to craters of various ages. Below this are two cross-sections taken through the moon's surface. In the lower right is an inset showing where this crater is located on the near side of the moon. Suspected folds, boundaries, and faults are shown.