ESU Trail is a 4 mile hiking trail in Emporia, Kansas.
Just south of I35 on Hwy99 Is Highland St. It runs behind the collage along I35. A few hundred yards you will see a gravel parking lot to the left. Just past that you will see a tunnel that takes you under I35. Go through the tunnel and you will see to the left a big double gate and a fenced in storage aera. This is where the trail begins.
http://www.tripleblaze.com/trail.php?c=3&i=7859