Portland’s Forest Park covers more than 5,000 acres, making it the largest urban forests in reserves in the U.S. The park has more than 70 miles of trails (how to prepare for trail running). It’s no surprise that runners, equestrians, hikers (hiking safety tips) and cyclists all love it. The Wildwood Trail stretches throughout the entire length of Forest Park. One of the most iconic attractions is the scenic 5-mile round trip trek from Lower Macleay Park to the Pittock Mansion. The century-old house is about 1,000 feet above the city. The views from there are incredible.