Unless something has changed it should be. It was in November 2019. I stayed there for 14 days from November 9th to the 23rd . Be prepared for cold weather camping if you do stay here this time of year Daily highs usually don't get much above the low 50s at best, and overnight lows may reach -10°F. Also, consider checking with BLM . Carbella is managed by them, and any changes/closures they would be the one to know for sure.