Hog Park Res puts you just north of the Zirkel Wilderness, a nice area. Many backpacking options in there. The higher peaks and lakes are a little further south but the Encampment Meadows, as Mouse mentioned, are close as are a few lakes with West Fork being a nice one. Don't know if you're into fishing but there's (or used to be) lots of brooks and some browns in the meadows. Bigger fish downstream in the Encampment Canyon.
Not much for civilization with Saratoga and Walden being the big towns. Hot springs in Saratoga are cool.
As Mouse also mentioned, beetle-kill destroyed most of the trees in the area. Be careful where you pitch your tent!