Subject: Triangulation / Spatial Coverage: Colorado / Language: English - Yale University Library GeoBlacklight Search Results

Start Over Subject Triangulation Spatial Coverage Colorado Language English

1. Progress of the triangulation between Eastern Colorado and the Rocky Mountains : along or near the 39th parallel. June 30, 1890

1890. 2013-10-25T15:11:10Z. 2013-11-21T21:25:54Z. U.S. Coast and Geodetic Survey, issuing body. U.S. Coast and Geodetic Survey. English. Public. Colorado and Wyoming.

2. Progress of the triangulation between the Mississippi River and Eastern Colorado : along or near the 39th parallel. June 30, 1890

1890. 2013-10-25T15:20:13Z. 2013-11-21T21:27:54Z. U.S. Coast and Geodetic Survey, issuing body. U.S. Coast and Geodetic Survey. English. Public. Colorado and Middle West.

3. Sketch showing the primary and secondary triangulation of 1873

1873. 2002-09-26T18:49:54Z. 2020-07-15T19:23:07Z. Geological and Geographical Survey of the Territories (U.S.). U.S. Geological and Geographical Survey of the Territories?. English. Public. Colorado.