1889 map by Indian affairs shows railroads and trails. Note the trail towards Caney Boggy Creek crosses Middle Boggy Creek near Lehigh as previously discussed. This trail is not the Texas Road nor the Butterfield Line Road which are relatively easy to follow on the map. My argument is that a unit moving along the Candadian from Ft. Gibson would have used the 1802 route blazed and previoulsy discussed til they got to the area of the Shawnee Hills and mouth of Little River. Started moving south along the Middle Boggy Valley. Remember their orders. Confederate troop dispostion was to place outposts/picket posts 15 to 20 miles out from major encampments, and Boggey Depot would fit that description along with Fort Washita. So how about a unit in the neighborhood of the "Boggy Bottom Road/Trail" to Caney Boggy Creek, a unit at the Middle Boggy in the neighborhood of Geary's Station and Jim Davis Bridge which is a segment of trail that combines the Texas Road and Butterfield Line Road? All supposition of course but I think it works and makes sense given the Union OR record. Note also Cochran's(Rock?) Academy which is present on the earlier map as well.
Goto http://memory.loc.gov/ammem/browse/ListSome.php?category=Maps search for Indian and you will find several good maps including the one discussed above published 1889 (Indian territory: compiled under the direction of the Hon. John H. Oberly, Commissioner of Indian Affairs, by C.A. Maxwell.)
The 1854 War dept map is there as well as an 1887 map very similar to the 1889 map. Also a 1902 map with modern roadways superimposed. The 1887 an 1889 maps are very helpful.
1874 Map of the Chickasaw country : and contiguous portions of the Indian Territory / prepared by 1st. Lieut. E.H. Ruffner, Chief Engineer, Mily. Dept. of the Missouri. remain consistent with all other maps of the era.
Ken I'm convinced you're right.