1. Start at the trailhead, heading NE.
2. 50 ftSharp left, heading SE.
3. 50 ftSharp right onto Busch Greenway, heading S.
4. 1.3 miSharp right onto Katy Trail, heading SW.
5. 2.4 miPass Hamburg Quarry.
6. 50 ftBear right, heading SW.
7. 0.7 miSharp left, heading N.
8. 0.4 miSharp right onto Hamburg Trail, heading SW.
9. 0.8 miSharp left onto Lost Valley Trail Connector, heading N.
10. 0.2 miContinue straight onto Lost Valley Trail, heading NW.
11. 1.6 miReach Hamburg Quarry, then turn around and head back the way you came.
12. 1.6 miContinue straight onto Lost Valley Trail Connector, heading SE.
13. 0.2 miSharp right onto Hamburg Trail, heading NE.
14. 0.8 miSharp left, heading SE.
15. 0.4 miSharp right, heading NE.
16. 0.7 miBear left onto Katy Trail, heading E.
17. 2.4 miSharp left onto Missouri Research Park Trail, heading E.
18. 1.3 miSharp left, heading NW.
19. 50 ftSharp right, heading NW.
20. 50 ftArrive 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/hamburg-quarry-hamburg-quarry-out-back-4-sights-24-km-383a