These lumpy salts are the residue of Death Valley's last significant lake, which had evaporated by 2,000 years ago.
Devil's Golf Course
Photo by Bob Greenburg, NPS.
Salt pinnacle close-up
Photo by Ray Nordeen, NPS.
Close-up of delicate lacework edges decoratiing the salt pinnacles. the lace grows up as water bearing salts is drawn upwards and evaporates into the arid atmosphere.