This rifle has a "heavy" front post on its guard, somewhat like Lexington rifles from Kentucky's Bluegrass region, but the gun did not come from Kentucky. Two indicators say otherwise:
1) The side facings around the lock have extended wood in front and behind the lock plate. Kentucky guns usually had a rather tight, uniform side facing around the entire lock plate that looked like one continuous band of approximately the same width... it did not widen toward the front and rear. This was particularly true with bluegrass area guns.
2) There is a slight "fish belly" in the butt's lower line, which is almost never found on Kentucky guns with their straight comb and toe lines forming a triangular butt. [David R. Estill of Fleming County was an exception, but they are few and far between]
There are not enough details on this rifle to locate it with any certainty, but if I were guessing, I'd say probably Ohio.
Shelby Gallien