[1] The spring was used by the Ohlone people, the Spanish military, and the U.S. Army as a freshwater source.
Beginning in the 2000s, the Presidio Trust has worked to rehabilitate El Polín spring and daylight sections of the creek downstream.
In 2005, 77,000 tons of landfill were removed from Thompson Reach, a downstream section, and native riparian species were planted.
In 2011, El Polín was restored, with new trails, native plants, and a picnic area installed.
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