by Joel Pomerantz
Come see springs few people even know exist in SF. Explore a valley that generates much of the groundwater pumped into reservoirs for Golden Gate Park and even the Presidio drinking water supply! How is this creek valley different from all others in San Francisco? How did the water get here? Come stand at the water’s edge and be amazed!
Topics covered on this walk: First water transport aqueduct to bring outside water, history of the abandoned reservoir and former Lake Honda, evidence for and against sewage ponds along the street, overall geology of SF.
Joel Pomerantz of Thinkwalks will give you an award-winning and thorough view of how the city came to be what it is, from the nature that was here first. Learn about the shifting sands of “San Francisco’s Sahara” and the shifting winds of land speculation that changed the western side of the city.
As always with Thinkwalks, you decide what to pay at the end of this short, richly narrated walk. We do a lot of hanging around talking, due to your extremely insightful questions and nerdy thoughts! Dress in layers for varying weather.
If you can’t make it, call Thinkwalks at 415-505-8255 and request a Group Tour on a date that works for you!
RSVP required. Maximum 15 people. Feel free to call if you have questions. Thanks!
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