I was reading an article on i09 about a woman paleontologist from the 1930's, and went poking around on the site where they got the information from; TrowelBlazers.

http://trowelblazers.com/

Some amazing stuff, and yet another area where women have been erased. Pictured here is Adela Breton, who explored Mesoamerican (Mexico/Central America) ruins circa 1900.