1. Geologic map of the Panama Canal and vicinity, Republic of Panama Mapa geológico del Canal de Panama, y sus alrededores, República de Panama / [cartographic material] = Yale Public content 1980. 2015-05-04T15:51:38Z. 2015-05-19T22:09:38Z. Stewart, R. H. U.S. Geological Survey. English&Spanish. cartographic image. Public. Panama, Panama Canal, and Panama Canal (Panama).