we are at el polin springs in the presidio national park at the headwaters of the tennessee hollow watershed. so, it looks small and kind of insignificant, but this is such a rare, important site. it's the last freshwater spring in san francisco. san francisco used to be filled with springs and creeks and little watersheds. 99% of that has been destroyed. this place would've bn a paradise for the ohlone ancestors here thousands of years ago. you have fresh water. you have food plants. you have medicine plants. and then all of the wildlife that is attracted to this area. so, this is directly linked to food sovereignty, that the ohlone people at one point probably ate a lot from this hillside and would probably like to do it again if they were allowed access and an active, tending relationip with these native plants again. when i first started coming to this place, it was still under the army's jurisdiction. access was opening up to the public as the conversion to a national park was opening up. and yet, there was no protection of it. there was no fence. there was a lot of eucalyptus. it was j