1. Reconnaissance for triangulation along the Rio Grande : from El Paso to the Gulf of Mexico. June 30th 1895 Yale Public content 1895. 2013-11-01T18:35:40Z. 2013-11-21T21:33:51Z. U.S. Coast and Geodetic Survey, issuing body. U.S. Coast and Geodetic Survey. English. Public. Texas and Mexico.