Oregon City is the balloon-knot of Portland and smells like a fart. This is not Oregon City. Blopes probably got screamed at by a handful of climbers and hikers for riding Smith Rock trails. Nice pic either way.
Unless I'm very very sorely mistaken, it's a place called Smith Rocks in Redmond, OR (nowhere near Oregon City, actually) that is primarily a hiking and rock climbing site. I've been there many times and never seen anyone biking this trail, because there is a significant stretch that is occupied by stairs that would be impossible (at least for those of us who aren't Brian Lopes) to ride.