I've only been once during a good amount of snow last year and couldn't get enough traction to get past this one rock. I've read in this other thread it's not too bad as they recently "maintained" it, it is a pretty place though.
FWIW I'm stock on 31s w/ open diffs.
96 ZJ 4.0
04 TJ 4.0
87 Rx7 TII