This is a new area for me. The Jungle is in the new Tod Anderson book, "Rampart Range Rocks". Tod did a great job on the description and is located in the lower west side of the book.
Buy Tod's book. It is awesome! and you're helping a fellow climber.
From Denver, the best way to reach Devils's Head is to take CO Highway 85 south to Sedalia. Then head west on CO Highway 67 to the North entrance of the park, about 10 miles. The ranger station booth marks the North end of FR 300, the Rampart Range Road. Take this South for approximately 9 miles to the turn off for Devil's Head campground and the Fire Tower. Be aware that the Rampart Range Road will be closed from the first Monday in December to sometime in April due to snow pack.
From Colorado Springs, FR 300 can be reached from the Garden of The Gods, but is a fairly torturous 20 miles North. Once at the parking lot, head up the tourist trail toward the Fire Tower about 1.5 miles. At a saddle well below the Fire Tower, the trail forks right (to the tower) and left to the Zinn Overlook. Head for the Zinn Overlook along a well-defined climber's trail. At the overlook, trails will fork directly toward the Headstone formation (left) and right, through the woods, toward the Red Wall, Starcastle, and The Shaft.
One must leave the tourist trail at the split rail fence and head south from there.
Mountain Project's determination of some of the classic, most popular, highest rated routes for The Jungle:
The directions contained in the second paragraph of this description are for the older established areas in the East Valley. As noted in the 3rd paragraph, to get to the Jungle one must stay on a course due south from the parking lot. This whole area is very complicated and the forest often blocks views of the crags. That's why the guidebook has detailed written descriptions, multiple maps and pictures of key landmarks.