The Acid Canyon Trail is one of the few short and easy hiking trips in Los Alamos. The loop is less than a mile and most of the loop follows a bedrock fire road through beautiful open pine stands. The return leg uses a steep trail built around 1920 by the Los Alamos Ranch School. All of this is on the edge of downtown!

From the kiosk, take the trail heading north. In a few yards, bear left, head downhill, and bear left again. In a minute come to a fire road near a hefty gate. Skirt around on the trail that goes right of the gate and rejoin the fire road. The road heads gradually downhill then curls around to head east parallel to the drainage of Acid Canyon.

After passing a long bridge to the left, swing right and cross a small wooden bridge. Climb on a bedrock ramp, bear right, and in a few yards cross the drainage on a low bridge. Follow switchbacks up to the mesa top. At the entrance to Kinnikinnik Park, head straight to the trailhead or take a short detour through the park.

The AllTrails website has a description and map of a hike at Acid Canyon.