The Snow Lake Zone is one of the permitted camping areas in the Enchantments. Permits  here  are very hard to get via the lottery (but easier to get than a permit for the Core Zone). You can also camp in the Snow Zone if you have a Core permit.

Snow Lakes is amazing. It's about 8 miles backpacking in from the Snow Lake Trailhead. It's at elevation, but not as cold as the Core Zone.

There is a backcountry toilet at Snow Lake (no walls, just a toilet),  but no other amenities.  There is water everywhere in the Enchantments, if you have a filter, you're never more than steps away from an alpine fresh water bottle refill. 

I used my 15 degree sleeping bag end of July (I'm a cold sleeper and the temps were about 30)

There are no fires allowed.

The best camping place we found  was a little spit at the far end of  the lake (almost all the way to the end that is closest to the core zone)