Concrete Creek

The size of this concrete stream bed tells a story. When you take the headwaters tour, you'll notice that creeks often begin with small flows from rainfall or a spring up in the hills. But here you see a large space that allows a great volume of water. Before colonization, this creek mouth was massive — so big that it could support a village that created the largest shellmound of the 425+ in the San Francisco Bay Area. Early Spanish explorers and missionaries described the mouth of the creek as lush and thriving with exceptional levels of animal life, especially bears.