Trail 19 is a little bit off on its lonesome. It does not connect directly to any other trails. Connections must be made via the gravel roads at each end of the trail. The eastern terminus is just west of Maumee, IN off of N. County Road 1190 W. Its western terminus is off of the road named (in different places, it's unclear where the name change actually occurs) County Road 1460 W. or County Road 1500 W.
Head to the north at the western terminus and you can head towards the Hickory Ridge Lookout Tower. Head south and you can connect to other trails in the Hickory Ridge trail system.