I'd wanted to explore upper Oak Creek Canyon to find out exactly where the water came from since Pumphouse Wash is usually dry. I parked just south of the bridge at the bottom of the switchbacks and made my way up the creek to a side creek where all the water was coming in. This is another Sterling Canyon--the fish hatchery is upstream. There is no trail, but there is a power line that I walked under for part of the way until I was stopped by killer raspberry vines that wanted my blood. I got my revenge by eating some sweet, black berries. There were large trout swimming in the shallow creek--they looked like browns. I tried climbing the canyon wall, but with the hatchery in sight, I knew I wouldn't find the spring from this entry. I turned around, went back to my car, drove up 89A to the last switchback and parked. Over the guardrail and down to the creek--the spring is encased in concrete and a pipe takes most of the water to the hatchery. The canyon is very narrow at this point and just a little water is coming down. So much for finding another Horton Spring! Then I drove down to Sedona to visit son/daughter-in-law. Caught the most beautiful moonrise as I was heading back to Flag!