Q, your link was to a printable page, and it tried to run my printer. :)

This link goes to the regular web page.

We have a lot of information about that territory and this ill-fated expedition at UT Arlington in Special Collections. There is a newsletter called Compass Rose in which I think we ran an article about a map that Sparks drew--we have a copy of it in our collection. It would have been from that expedition.

SRS