Update 6:59 p.m. A sheriff's helicopter crew in 40 King did a flyover-area check on the south slope of Mount Baldy, east of the resort for a possible aircraft down, a department spokeswoman said.
The crew was unable to locate any aircraft and at 6:15 p.m. they closed the call, Cynthia Bachman of the Sheriff's Department said Wednesday evening.
Posted 6:19 p.m. The Sheriff's Aviation Unit was investigating a report of a possible small civilian plane crash Wednesday near the summit of Mount Baldy on the San Bernardino-Los Angeles county line.
The report of a small plane down near the top of Mount Baldy came before 5 p.m., a sergeant at Sheriff's Aviation in Rialto said in a phone interview around sundown Nov. 14.
"We just received the report, from a single reporting party, and we're sending an airship up to take a look," Sgt. Dan Futscher of Sheriff's Aviation in Rialto said. "That's all the information we have at this time."
Mount Baldy, formally known as Mount San Antonio, is 10,069 feet above sea level, according to mapmakers. It is the highest point in the San Gabriel Mountains and it sits astride the San Bernardino-Los Angeles county line north of Upland and Claremont.
Stay with Claremont-La Verne Patch for updates on this developing story.