Well, the jail is the second cabin seen behind the first one.
The mandatory historical plaque affixed to the cabin.
The jail looked quite sturdy but were I the sheriff I think I might have ordered smaller windows, bars notwithstanding.
A local resident advised us that this building was the original county jail, but I cannot attest to either his veracity or his accuracy. Anyway, a solo visit to this park and its buildings entertained me whilst money was changing hands a few yards to the north.
An uneventful and pleasant sixty mile drive home concluded a fine day.