Jasper Davis stoops to tilt a plastic bottle under a drip of water that's trickling from a crack in the mountainside.
"Tastes better than what the city water does," he says. "Way better."
The spring is innocuous, a mere dribble emerging from a cliff face that was cut out to make room for a four-lane highway. But there's evidence of frequent visitors. A small footbridge has been placed over the muddy ground, and some enterprising soul shoved a rubber tube into the mountain to make filling jugs easier.