Pasadena front country Locate the trailheads: Rubio Canyon and Eaton Canyon . There was a week or so of rain, so I decided to go out and see the waterfalls. It was not heavy rain, just drawn out. Rubio Canyon Wandering up the various Rubio named streets, I got to the trailhead. The trail hadn't suffered under the recent watering. Unfortunately the canyon hadn't really filled up, either. I didn't see water in it until about halfway up the section of the trail in the canyon where some of the bottom is visible instead of the endless stones from the water company's little mistake. As I came into the canyon bottom, I spotted this little mushroom. The first sighting of water and there's not very much of it.