While not officially an “Oregon Hike”, Dog Mountain is just over the northern border along the Gorge, near the town of Stevenson, WA. If you are looking for a more challenging hike, this is a great choice. It is a 7 mile trek up the mountain and back, though there are lower viewpoints as well as those at the summit. It will take several hours to get to the top and it can be somewhat treacherous in the Winter. But the view of the Gorge is amazing! Also be sure to check it out in the Spring-Summer for beautiful fields of wildflowers.