The survey was a search for maps, written text or description, and aerial photographs that would be useful in quantitatively describing the physical attributes of the environment found in Thailand that affect ground mobility. These physical attributes include surface geometry, soils, vegetation, hydrologic geometry, and climate. Sections corresponding to the physical attributes and a general section were established for filing and cross-filing references according to their data content. Each section was further subdivided into two subsections, text and map references. A list of 1613 unclassified references was compiled, and the contents of each reference were evaluated according to the following categories: (a) quantitative data, (b) qualitative data, (c) useful data absent, (d) gazetteers, bibliographies, etc., and (e) not reviewed. Of these references, 1012 were reviewed and annotated, 484 were cross-filed, and 117 were not reviewed. Geographic index maps were prepared to show specific areas of Thailand described in the annotated references when these areas were less than the entire country. Each bibliographic entry is identified by a series of symbols indicating (a) section and reference number, (b) subsection (text, maps, or both), (c) evaluation category, and (d) if and where cross-filed.