With Marcy Gulch on the right and the Highline Canal on the left, the 17th hole is the most difficult par-3 on the course. The “Signature Hole” of Highlands Ranch Golf Club features abundant wild flowers in the spring and early summer. Choose a club less for the downhill tee shot. This area sits atop a small elevated shelf, and shots to a back-left pin placement on the green have ruined many good rounds. Golfers are happy to make par on this hole.