My special interests are trail research, historical maps and original cartography. I've done a great deal of research on 19th century trails in Arizona and my findings are published on this website, in Power Point presentations, or in print publications. This experience as a trail researcher helps me to make better maps for my clients.

The map above is an analysis of an 1854 railroad survey map (right)* interpreted on a modern map. This type of preliminary study is a great help in locating and documenting trails and campsites. If I can be of any help with your research project or map, please contact me.

-Tom Jonas

 

*The vintage map at above right is an inset titled "Aztec Pass" from a map by A.W. Whipple and J. C. Ives titled From the Rio Grande to the Pacific Ocean.

(ASU SPECIAL COLLECTIONS)

© SOUTHWEST EXPLORATIONS, 2009