Trail Creek Road Introduction: Trail Creek Road is relatively flat (for the Rocky Mountains) with a modest 2.6% average grade from north to south. What it lacks in climbs and descents, it makes up for with twists and turns. But it’s the potholes, puddles and stream crossings, (especially after a storm) that really put a smile on my face. One could easily spend weeks exploring all of the trails that cut off from Trail Creek. We've provided this through route and leave the rest for you to explore.