"Annadel State Park, located on the eastern edge of Santa Rosa, has been a favorite area of off-road cyclists for years. Annadel offers 5,000 acres of excellent trails with rolling hills, intermittent streams, woodlands and meadows. There are 35 miles of gently rolling trails in the park with elevations ranging from 360 to 1,880 feet. Lake Ilsanjo, a 2.5-mile ride from the parking lot, is a popular destination for bicycles and hikers as well. Ledson Marsh, also a popular destination, is an ideal area for observing and photographing the park's wildlife, which include over 130 species of birds, as well as deer, fox, raccoon, muskrat, skunk, bobcat, and wild pig. Located in the Santa Rosa area."