The following post comes courtesy of the research of Jeff Wahl:
The following hand drawn map was included with Lt. Maguire's Annual Report for the Fiscal Year Ending June 30, 1876, to Brig. Gen. A. A. Humphreys, July 10, 1876 from camp on the Yellowstone River. Lt. Maguire mentions the sketch/map in his report... "When the village was sighted he ordered Reno to charge with his three companies, telling him that he would be supported. Reno crossed the river at point A (See sketch herewith) and moved down the woods at C without encountering much opposition...".
"The more I see of movement here (Little Big Horn Battlefield), the more I have admiration for Custer, and I am satisfied his like will not be found very soon again.”
~ Gen. Nelson Miles, Commanding General of the Army ------
"With our cherished ones deliverance within our grasp we waited breathless for the order that never came."
Captain Thomas B. Weir, Jul. 1876.
General of the Army (Medicine Man/Chief))
This is a great find and all the more so for it being understood for what it is, and brought to notice. Well done.
If this Maguire map is considered with Terry's (first) report of the 27th June 1876, and Benteen's sketch, then whilst Maguire saw two routes of march, Terry and Benteen saw an anti-clockwise movement.
Per Terry, 'His trail from the point where Reno crossed the stream, passes along and in the rear of the crest of the bluffs on the right bank for nearly or quite three miles. Then it comes down to the bank of the river, but once diverges from it as if he had unsuccessfully attempted to cross, then turns upon itself, almost completed a circle and ceases.' This is the anti-clockwise theory and it was the first official assessment by the battle and expedition commander - Terry.