An unnamed arch in San Bernadino County, California
Photo by Jay Wilbur
NABSQNO 11S-582144-3860312. This cave natural arch remains unnamed despite being shown on many maps and being surrounded by several named points of geographic interest. It is eroded through basalt. Access requires a lengthy 4WD route that connects to Interstate 40 at Ludlow, California. A register found under the arch in 1990 showed that this arch receives about 1 visit per day. The arch is listed in the Vreeland catalog as number 21-29.