Past Meetup

Hike the Arroyo Seco from JPL

This Meetup is past

5 people went

Location visible to members


This is a relatively easy hike with no major inclines, but it is about 8 miles round trip. It is easy to turn around at any point in the hike if you feel it will be too long. The trailhead is at the west end of Altadena Drive behind the guard rail. The beginning of the hike is along a narrow, paved road used by pedestrians, horses, dogs, bicycles and local residents. Eventually it becomes a single track dirt path. There are several stream crossings, but we should be able to “rock hop” across. Our destination is about 4 miles up stream to the debris dam. We will find a place to have a short snack/lunch break before heading back.

Directions to the trailhead:From the San Fernando Valley take the 134 freeway east to the 210 WEST (yes west - toward the San Fernando Valley) and exit at Lincoln Ave. From Pasadena and points east, take the 210 freeway west and exit Lincoln Ave. Turn right to Altadena Dr. (about 1.5 miles). Turn Left on Altadena Dr. and go to the end. Park anywhere where permitted - please be considerate of the neighborhood. Alternate route is exit the 210 at Fair Oaks or Lake and take either about 3 miles north to Altadena Dr. – turn left and go to the end of the road. Any questions about this hike, please contact me at [masked]

What to bring: Ample water and a snack or sandwich for the break. Other suggestions are sunscreen, insect repellent, and comfortable shoes

The Organizer, Assistant Organizers and event hosts in this group are not professional guides. The function of the organizer is only to organize the trip. Each person who signs up for a trip/meetup/or outing is responsible for his or her own safety and the safety of his or her guests. By signing up for a hike, or any other event organized by this group, you are acknowledging. that you are aware and have made your guests aware of the risks, dangers and hazards associated with any outdoor activity and freely accept and fully assume all such risks, dangers and hazards, and further agree to release and discharge the Organizer, Assistant Organizers and event hosts of this Meetup Group from and against any and all liability arising from your and your guest's participation in the group activities.