Davis Peak is very accessible to Portland Metro, with a half mile hike and offers an amazing view. The downside is a fair bit of RF interference from the installation sharing the peak with you.
The google directions were accurate, although I will note that the main road to the peak has 2 names, and signage alternates between them : "Aho Carson" and "Davis Peak Road". When google told us to take a right onto Davis Peak Road the sign at the turn said "Aho Carson".