The Aqueduct trail ends with an awesome flat section to a downhill end, great for a cool down or some speed work.
Start off crossing a meadow and heading into the woods, the trail intermittently changes between an open meadow and forest for the first couple miles. There are couple short steeper climbs that will slow you down, then it becomes flat/rolling singletrack all the way to the back ranch.
The trail is well signed following Soda Creek Trail
until you get to the back ranch (~4 miles in) then you hop onto Soda Ridge Trail
which then becomes Keystone Aquaduct. The Soda Ridge trail has some steepness to it at the beginning but becomes gentle rolling terrain once you're about halfway through it. What a great loop!