This is a nice, mostly singletrack trail that runs along the eastern edge of the reservoir.
At the start of the trail, you'll hit a fairly steep and rocky but short climb. Right after the climb, there is a large rideable tree (see photo) across the main path. This can be bypassed on the right. Clearing this in the opposite direction is a right of passage at the Rez. The trail then heads up again with another much smaller tree obstacle. This also has a bypass on the right.
There is a short paved section after you pass two large water towers. The trail continues into the woods on the right. There are a few log obstacles on the side of the trail as you continue to head north.
The trail will eventually widen into a doubletrack. There is a nice little rock obstacle (see photo) in the middle of the trail here. Just after the rock, the trail splits to the left and the right. Turn right at the intersection then cut into the woods on the left. This area tends to be very muddy in the spring and can be avoided by staying on the doubletrack.
The short singletrack section will merge back into the doubletrack. This last part of the trail is a gentle climb up to another four-way intersection. Along the way there will be steps on the left then right edge of the trails. These make for nice little jumps when heading in the opposite direction.
Finally, at the four-way intersection, there is ~10-foot tree on the side of the trail which is nice for practicing log rides.