Midway between the forts of Kirkintilloch and Cadder is the site of a Roman fortlet.
The fortlet is sometimes visible in aerial photographs, but no traces are visible on the ground today. The fortlet has never been excavated, but aerial photography has revealed that it had an area of about 20m square and was defended by a turf rampart and a ditch. There may have been a bridge across the ditch, allowing access across the frontier.
The fortlet lies just east of the bridge that takes the A803 over the Forth and Clyde Canal, and just to the north of the canal, west of Kirkintilloch.