Both this weekend, regrettably both on the same day, so you will need to choose one or the other. Regrettably, both on a day during which my time will the otherwise occupied with house repair work many miles away.
The first option is the Pomona Valley Bike Coalition's Bike and Hike to Fish Canyon Falls. This is the advocacy groups second time doing this one and, though i failed to make the first one either, it proved to be a hit with those who were more fortunate. The ride portion is approximately thirty-six miles round trip between Claremont and Azusa, and back to Claremont; the hike portion is about five miles. Check out the event page for more information. If the distance seems too much, there are shuttle options.
Your second option is the third in the Grande Fondo training series, hosted by Jon Riddle. Unless you are on Jon's email list, this one may not have crossed your computer screen. The October date for the 100 mile, 10,000 foot El Grande Fonde de Los Angeles Crest is approaching. To prepare, riders who may want to do the Fondo can participate in a series of training rides leading up to the big event. The ride this Saturday (tomorrow) will start at the Sylmar/San Fernando Metrolink Station (8:30, ride at 9:00) and follow a route through Little Tujunga Canyon, into Santa Clarita, and back through the Newhall Pass. A good solid ride of forty-six miles, and about thirty-eight hundred feet of elevation gain. You are strongly encouraged to RSVP at firstname.lastname@example.org
Whether you do one of these, or something completely different, have yourselves a great weekend.