Map title: Military reconnoissance of the Arkansas, Rio Del Norte, and Rio Gila.

Executive, #7. Another editon, of same date, with folded map (ordered printed December 16, 1847) is found in the Congressional series of public documents. "Made in 1846-7, with the Advanced Guard of the Army of the West."

v. 1. Text. Appendix 3: Table of Meteorological Observations. Appendix 4: Table of Geological Positions. Appendix 5: Table of Astronomical Observations. Appendix 6: Notes of J.W. Abert - - v. 2. Folded map (31 in. x 70 in.) in container.