1. Start on Parnell Tower Trail, heading N.
2. 0.6 miTurn left onto Ice Age Trail, heading S.
3. 1.3 miTurn right, heading SW.
4. 50 ftTurn left onto Kettle Moraine State Forest-Northern Unit Main Horse Trail, heading SW.
5. 3.7 miContinue straight onto Butler Lake Loop, heading W.
6. 0.4 miTurn left onto Ice Age Trail, heading W.
7. 0.8 miTurn right onto Shelter #3 Access, heading SE.
8. 0.7 miReach Ice Age Trail, then turn around and head back the way you came.
9. 0.7 miTurn left onto Ice Age Trail, heading E.
10. 0.8 miTurn right onto Butler Lake Loop, heading NE.
11. 0.4 miContinue straight onto Kettle Moraine State Forest-Northern Unit Main Horse Trail, heading E.
12. 3.7 miTurn right, heading E.
13. 50 ftTurn left onto Ice Age Trail, heading E.
14. 1.3 miTurn right onto Parnell Tower Trail, heading N.
15. 0.5 miArrive back at the trailhead.

Each distance is the walk from the previous step. Tap a step for a map of its junction.

Trail map, photos and weather for this hike: www.ambleway.com/hikes/ice-age-trail-shelter-3-access-out-back-22-km