If you go to almost any privately owned bike shop you can pick up a Colorado Springs Trail Map. It’s got a lot of stuff besides Palmer on there that make for really good rides. I got mine at Boulder Running Company. Also, your best bet may to go to Palmer and park at the Paseo Rd. Parking Area. Its off of N. Circle on the west side near Mark Reyner Stables. For mountain biking stick with blue squares. Green circles are tow paths and black diamonds are pretty intense (at least for me ).