“The trail around Hagg Lake is a close-to-portland Gem, with over 13 miles of singletrack.”
— Tyler Bump
The Park is open year round, from sunrise to sunset.
There is only one trail which circumnavigates Hagg Lake. Many folks prefer to ride clockwise, but those who ride it much seem to prefer counter-clockwise. (Those who ride it much or the "locals"prefer the flow the trail has counter-clockwise.)
Many folks like to go just across the Dam (left right after entering the park), but I prefer to go to the next (smaller) parking lot past the big dirt one. Then I ride back across the dam.
There are quite a few places where hiking/fishing trails cross the loop trail, but if you take a wrong turn you can't go very far.
NOTE: There is an access fee. See misc section below for details.
This trail offers a lot of amazingly fun riding as well as a little taste of each of the worst things western Oregon has to offer for mountain bikers. Fortunately, each of those worst things is generally easy to avoid or adapt to if you know what to expect and know what to avoid.
Need to Know
1. Avoid open, sun drenched and low lying meadows at all costs during the summer growing season. It isn't humanly possible to keep up with the overgrowth in these areas. If there is a sign that says "Ecologically Sensitive" find the nearest spur and ride up to the road and bypass it. This isn't to protect the area, it's to protect you. In western Oregon, the ecology is sensitive like a rabid alley cat. It's easy for you to cause some damage, but you're going to get hurt in the process. The trail is heavily rutted through this area and the vegetation has grown in to conceal some very dangerous potholes and deep ruts. There are deep holes full of prickly things that'll swallow you and your bike no problem.
2. Watch out for spurs that descend to the lake. There are a lot of little fishing trails that are easy to get lost on.
3. Watch out for swimmers on the trail! These are not the typical savvy outdoors hikers you're used to running across on trails.
The Clockwise Loop: Go across the dam after entering the parking lot, then park at the large parking lot on your right, just across the dam. From there, ride down the road to a small paved pull-out parking area, and head down the trail.
Soon you'll cross a bridge that NWTA helped construct, then you'll come to a picnic area and the large Boat Ramp C area, where there are bathrooms and a food vendor (and water).
Continue on the south side of the lake, going clockwise, until you come to the west end of the lake, where the trail dumps you out on the road. Continue around the west end of the lake, going about 1/4 mile until you see the trail jump into the woods again. This enters the Butterfly area. Be careful to stay on the trail here.
Continue until Boat Ramp A. You are dumped on the road a couple of times, but carefully ride along the right side of the road and jump back on the trail when you see it.
After Boat Ramp A it's only a mile or two to the damn, going behind the Ranger Station (fenced with chain link). Ride back across the dam and you are at your car with a smile!
History & Background
This trail was originally created with help from PUMP (our bike club before being rebranded) about 10 years ago.