The Civil Works Map file has the following Arkansas maps:
# 12 - Prairie Grove
#37 - Pea Ridge
#43 - Dooley's Ferry
#73 - DeVall's Bluff
#137 - Arkansas Post
???(I didn't write the number) - Dallas, Desha, Drew and Ouchita Counties
The file "Plans of Military Forts" has one map showing Steele's Route and 3 different maps around Little Rock.
This catalog is only 75% complete so there may be more to come.