We skied this in a storm and it was our first time up there. So I didn't get a good look around. We skied the north east facing aspects just to the southwest of the first large lake in the forest lakes area. We skied mellow terrain but there looked like there was steeper chutes above us towards the ridgeline to our south.
A better area to ski might be if you take a left off the trail towards forest lakes and head towards arapaho lakes, up trail 818 as labeled on the nat geo trails illustrated map (#103 for this area). It appears you gain elevation more quickly and may have more sustained, slightly steeper terrain - which would be an improvement over the aspects described above.[more]
Guanella Pass is a great drive in the summer, and there is a variety of terrain up there to ski in the winter and spring. The road was closed in august of 2009 due to rock fall danger, so it is a longer skin to some places, but the old resort, Geneva Basin is a fun spot for a backcountry ski trip. Argentine Pass is another spot to go for some longer tours, you just want to make sure the snow is decent up there!
How to Get There
take I-70 West to Georgetown, go through the town, and up Guanella Pass Road. From here you can get to Geneva Basin, Argentine Pass, and a couple of other spots.
Like most of colorado in the winter, you can camp there, but be prepared to be a little chilly.