Battle of South Mountain
The original Fort Reno built in 1865 on the Bozeman Trail was named for General Jesse L. Reno, a civil war general killed in September 1862 while commanding an army corps at Fox's Gap at the Battle of South Mountain, Maryland. Neither the original Fort Reno, nor Cantonment Reno had any connection with Major Marcus Reno, an officer at the Battle of the Little Bighorn.