Wife and I did a short 24 mile, 3-day/2-night backpack loop in the Lost Creek Wilderness over Labor Day. Its an interesting area on the western edge of the Rampart Range and extends from near Cheesman Reservoir up and over to Kenosha Pass. For our MTBers - this is just south of Buffalo Creek area. For those that have run China Wall, this is the area immediately to the north. Geologically its most notable for the massive outcroppings of the red/pink South Platte granite (essentially the same as the Pikes Peak granite just a little to the south). The granite weathers into gravel (gruss) and makes for a very porous and permeable surface that water flows into and through easily. Many of the creeks appear and disappear into the ground as they flow along both above and below the surface. The granite is quite fractured and allows for a surprising amount ground water collection - thus even after one of the driest summers on record around here, there was still decent flowing water and lots of greenery. This area (squeezed between the Rampart Range to the east and the Tarrryall Mts to the west) doesn't get to the classic high alpine elevations normally associated with the high peaks further west, and ranges from 8000-11,500 feet or so. Also noticed some of the first fall aspen colors turning yellow/gold.
what it generally looks like:
some big aspens in the meadows:
a granite cave and spring - cool to see water flowing right out of the granite.
interesting terrain - looks pretty rugged but really wasn't too hard getting around
Night 2 camp
Above 11,000' - fall colors starting