Aspen Trail – 10K – Rated 3. Remote start, you will drive approximately 3 miles to start near Aspen Trail. No restrooms, dogs must be leashed. Walk through Portland's spectacular Forest Park, mostly along the Wildwood Trail and other trails. It's hard to imagine that you are so close to, actually in, a major city as you walk through this magnificent gem that is a part of Portland. The walk starts and finishes from a street in the hills of NW Portland with its beautiful homes and views. This is not just another city walk as it allows the walker to experience the feel of the forest within a city. Parts of the trail could be muddy in the rainy season.