Shasta Dam, at 602 feet high and two-thirds of a mile long, is the second-largest concrete dam in the United States (Grand Coulee in Washington is the largest; Hoover in Nevada is third) and forms the largest reservoir in California.
Dogs aren't allowed in the visitor center or auditorium, but great views are to be had from a vista point and from the picnic grounds adjacent to the visitor center, and you're welcome to walk your leashed pet across the dam's .66-mile length. Many public and private marinas, campgrounds, RV parks, resorts and boat launches border the popular lake.
Photo: @Janet Fullwood
