I've been to the "Devry jumps" a couple times, they are sweeet. There is a Jewel on Roscoe and Western, go west from the light and you'll see Devry pretty much strait ahead. Go through the parking lot (strait west) and you'll see another neiborhood street. Go right on the street to a parking lot RIGHT AWAY on your left. Park there. Go to a hole in the fence about 100ft from where you park. You'll see jumps just inside the fence opening.

I know it sounds like a treasure map but it'll get you there.