AT -
How are you getting there?
If you are driving - why not continue on to the Mojave Preserve and/or Death Valley.
March is the perfect time to tour - great temperatures -
Plus you have the lovely fringe benefit of wildflower season.
This year was looking good with all the December rain - but January has been dry.
February will tell whether or not there are oodles of wildflowers or only a few.
There are plenty of loops - but you need to use care with H2O.

J