Angel Island State Park is the destination for our next summer hike. Here's Wendy's description of the outing: "Flowers, great views and a fascinating history from when Juan Manuel de Ayala sailed from San Carlos into San Francisco Bay in 1775 through Angel Island's year as a quarantine station and its years as Fort McDowell during World War II and a Nike missile base during the Cold War." Angel Island is often good for butterflies like Anise Swallowtails, Western Tiger Swallowtails, California Sisters, and Pipevine Swallowtails.
We'll meet at the ferry dock at 21 Main Street at 9:50 a.m..
Allow time to park and don't miss the boat! (Although it's only a 10-minute trip, the next ferry doesn't run until 11:00 a.m.)
Weather forecast: As of Wednesday, May 10th, the National Weather Service forecast for the area around Rock Spring on Mt. Tam was mostly sunny, with a high near 55. (Click here for an updated forecast).
More on this hike: The "B17 Simmons - Potrero - Arturo Trails" hike in the Martins' book, Hiking Marin, shows the trails that we'll be hiking on, although we'll probably follow a different route (Simmons to Benstein to Potrero Meadows to Laurel Dell and back up the Cataract Trail to Rock Spring). Page 6 of the state park brochure has a trail map that shows the area.
Here's the hike profile and route we'll follow.
The Google Earth image below shows were we'll be on the mountain. (Click on the photo to open a larger image in your Web browser).