The Sacramento-Lower Cow-Lower Clear watershed in California is home to the historic Gold Dredge, which was built in the early 1900s to extract gold from the riverbeds. The dredge is a massive machine that was used to sift through gravel and sand to extract the precious metal. It is now a popular tourist attraction and historical site, offering visitors a glimpse into the California Gold Rush and the engineering innovations of the time.

Visitors to the Gold Dredge can take a tour of the machinery and learn about the history of gold mining in the area. There is also a museum on site that showcases artifacts from the era. The dredge is located in a beautiful natural setting, with opportunities for hiking and wildlife watching in the surrounding area. With its unique historical significance and natural beauty, the Gold Dredge is a must-see destination for anyone interested in California's rich history and natural resources.