The climb to get above treeline is fairly reasonable, but it still isn't easy: you'll have to gain over 1,000 feet of elevation just to reach the junction with the Engineer Mountain Trail. Along the way to the alpine, the trail still passes through incredibly scenic surroundings. It begins in a stunning meadow choked with wildflowers before quickly passing into tall timber. The trail traverses some exposed sections of bedrock and passes a small lake while climbing its way ever higher to the high alpine reward beyond.
The goal of the run is to reach the stupendous high alpine fields of wildflowers found just above treeline. From these flower-filled meadows, you'll enjoy spectacular panoramic vistas of the San Juan mountains, with close-up views of Engineer Mountain looming above.
At the junction with the Engineer Mountain Trail, you can choose to run either left or right to extend the route and spend more time enjoying the alpine. And if you're looking for a true challenge, you can, of course, attempt to summit Engineer Mountain itself. See the route and description for Engineer, mapped separately.
Once done, return back down the Pass Creek Trail to your car.