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Mountain Lake Science Saturdays

Mountain Lake Science Saturdays is a lively new series of talks by scientists studying topics relating to Mountain Lake and its ecological restoration. On the second Saturday of every month, gather at the lake to hear researchers from a variety of disciplines talk on topics ranging from Archaeology to Zooplankton. Here’s your chance to ask the experts your questions about the science behind saving this precious San Francisco natural wonder!   


Butterflies of Mountain Lake and Beyond: Liam O'Brien, Lepidopterist


Join Liam O’Brien at Mountain Lake for a talk on the fascinating world of local butterflies.  Liam will give a beginner’s overview of these beautiful invertebrates, and discuss the rich history of Lepidoptera in San Francisco. He’ll also discuss a number of butterfly restoration and conservation efforts he’s been involved with across the Bay Area.


Liam O'Brien surveyed all of the butterflies of San Francisco in 2007 and again in 2009. He also completed a thorough inventory of the Presidio's butterflies, a project which culminated in his first book, "The Butterflies of the Presidio,” co-authored with Matthew Zlatunich. Liam created the Green Hairstreak Project, spearheaded efforts to restore the Mission Blue butterfly to Twin Peaks and launched "Tigers on Market Street" with Amber Hasselbring. He was named Environmental Educator of the Year by Bay Nature Magazine in January of 2014.


Talks are held at the outdoor classroom (north end of the lake), approximately a 15 minute walk from the parking lot at 14th Avenue and Wedemeyer Street (Free Parking). Follow the signs from there or join a guide leaving at 1:45 pm. Get Directions >>

Second Saturdays aren’t just Science Saturdays! Join your neighbors at Mountain Lake every Second Saturday from 9 am to noon for Service Saturdays. Volunteer and help restore Mountain Lake’s precious natural resources. For more information, email Jason Lisenby at
When & Where
Starts: 10/11/2014 2:00 PM
Ends: 10/11/2014 3:00 PM
(Mountain Lake )
Meet at the 14th Avenue Gate located near 1808 Wedemeyer Street.

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