[/caption] 5,170 acre Forest Park is the largest city park in the lower 48 states and is located within Portland’s city limits. The park offers over 50 miles of hiking trails and over 10 miles of biking access. There are numerous creeks and small waterfalls that cascade through the park and several wooden bridges take you over the creeks. There are hundreds of wildlife that call Forest Park home, including bald eagles, owls, hawks, deer and coyotes. In fact, more than 112 bird species and 62 mammal species frequent the park and its wide variety of trees and shade-loving plants. You’re allowed to hike with your dog but you are required to keep them leashed and always clean up after your dog. Unfortunately, not everybody does either of the two.