Lemont is where the hills are highest around here (le mont, get it?) but it's more like 1/4 mile not 5 miles. Try Main street or Timberline drive just south of the I&M canal.
The I&M canal trail will take you right to it but I would not try to reach the trail by La Grange rd. There is really no place to ride on the bridge over the Des Plaines valley. Willow Springs rd is OK, or take Plainfield rd. to Madison or Rt. 83 and go south.
Lemont is just south of the Des Plaines river. Immediately to the North there is a nature preserve which has several gravel paved loops. The largest is nine miles and it's pretty hilly. It's doable on a road bike with 28mm or wider tires.
P.S. I think it's "athena" not "clydess"!
Last edited by garage sale GT; 08-07-09 at 09:12 PM.