Past Meetup

Jack London to Sonoma Mountain. 9 miles, 1800 ft. Moderate+

Jack London State Historic Park

2400 London Ranch Rd · Glen Ellen, CA

How to find us

Parking lot is first right after park entrance station. $10 fee required

Location image of event venue


We start with a gentle meander through the Jack London ruins then wander up to London Lake (now a marsh at best). From there we head uphill at a fairly gradual but consistent pace along the mountain trail to meadow trail to hayfields trail until finally reaching the east summit of Sonoma mountain. After lunch at the top, we work our way down in a more direct route except for a different jog around London Lake. As stated above; around 9 Miles, 1800 ft gain. I call this a Moderate +; a reasonable challenge but not for beginners.

We should finish this hike well before 2:00 which will leave time for those who have never visited the park to check out the visitor center/museumand maybe even the Wolf house ruins. Make sure you work it out with your car-pool friends if you want to do this or just leave after the hike.

As always:

Please always check your email the night before just in case there are any necessary adjustments.

Give yourself time to find the trailhead so that you arrive prior to the scheduled time. That is the time we head out on the trail. It would be disappointing to miss having you on the hike due to late arrival.

Wear comfortable hiking shoes with good rugged soles that are well broken in.

Duration: Appx 4.5 hours

Facilities: Pit toilet at the trailhead and maybe (no guarantee) at London Lake

Dogs?: None allowed by the park.

We go rain or shine! (unless of course the weather is so bad it wouldn't be safe)

Bring plenty of water. More than one bottle is usually a good idea.

Dress in layers. The hike starts off cool but may warm up. Predicted high is only 65.

Bring a lunch and something to sit on. We will stop at the top for lunch!

Always try to car-pool if you can. If there is a noted car pool that is full or doesn’t work for you it would be wonderful if posted your own on the hike’s comments spot. And car poolers if you are riding with someone other than your leader please chip in for gas and the use of car.

Bring your smile and great attitude! Once again....this is not about finishing the hike in record's about enjoying ourselves and the outdoors!