This is a sort of lumpish pile of boulders and rock located just southwest of the Jimmy Cliff area. You're not likely to run into anyone here, other than folks ticking off the list from the "Trad Guide to Joshua Tree"
From the parking area for Atlantis or the Jimmy Cliff, hike south on a trail past the Atlantis turnoff, then past Jimmy Cliff, then
Browse More Classics in Mount Grossvogel
Mountain Project's determination of some of the classic, most popular, highest rated routes for Mount Grossvogel:
Crazy Climber 5.10d Trad, 1 pitch, 60 feet
Featured Route For Mount Grossvogel