Sounds like real interesting work.
It is, indeed. OTOH, I am basically a prehistoric archeologist, (Texas spelling) with special interest in experimental lithic technology (flintknapping). But, since I have gotten involved in this historic stuff, I haven't had time to explore any of the local Caddoan sites or, even, to pick up a billet (except when lecturing or doing demos...)
The other problem is that now I spend too much time with my bottom in the chair in front of the computer (even when not FReeping) and too little time out in the field.
Via analysis of old maps and overhead imagery, I locate where the old roads should cross public roads, Then I drive to that point, locate the actual old roadbed, and log the crossing with the GPS. Then I come back and dump the GPS waypoint data into the computer, which plots it atop composites of USGS topo maps and aerial photos.
This historical work is certainly rewarding, but I can't honestly say that it is more exciting than the "ching" of the trowel when it hits flint or the "chung" when it hits pottery...