A total of six soldiers were injured in an accident while they were moving equipment into a training area on the Army's sprawling National Training Center, said Pamela Portland, a Fort Irwin spokeswoman.
The cause of the accident, which occurred about 8:30 a.m., is under investigation, she said.
One male solider who was reported in fair condition was taken to Arrowhead Regional Medical Center by a military helicopter, said Jorge Valencia, a hospital spokesman.
Privacy rules prohibit the hospital from describing the injuries, Valencia said.
A soldier received by Loma Linda University Medical Center also was listed in fair condition, a spokesman said.
None of the injured received life-threatening injuries, although one might have sustained two broken ankles, Portland said.
Three soldiers were treated for minor injuries at Weed Army Community Hospital at Fort Irwin and released.
The Arrowhead Regional and Loma Linda University medical centers have the only certified trauma units in San Bernardino County.
Fort Irwin, located 37 miles northeast of Barstow, hosts the Army's National Training Center, a more than 1,000-square-mile facility where combat units from around the country train in large-scale maneuvers with live-fire scenarios.
Two of the injured soldiers were permanently assigned to Fort Irwin, while four were on a training rotation from an Army unit based elsewhere.