(Updated October 25, 2007 at 12:57 p.m.)

A Hesperia man has been arrested for starting a fire near Mojave Forks Campgrounds.

John Alfred Rund, 48, was arrested Tuesday night by the California Highway Patrol.

Witnesses reported seeing a motorcyclist wearing a red and white striped helmet squatting near the site of a brush fire near California 173, south of Arrowhead Lake Road and south of Mojave Forks Campgrounds and north of the Grass Valley Fire. The witnesses extinguished the brushfire using shovels and dirt.

A CHP helicopter unit did an aerial sweep of the scene using infrared equipment. San Bernardino County Fire Department firefighters reported seeing the motorcyclist approaching the closed portion of California 173 at California 138. The CHP pilot spotted the motorcycle and followed it to an address on California 173.

CHP and San Bernardino County Sheriff's Department personnel made contact with Rund. After further investigation, Rund was arrested for arson.

The sheriff's department Bomb/Arson Detail and county fire department are conducting an arson investigation.

According to the San Bernardino County District Attorney's office, Rund is not a suspect to any other fires in San Bernardino County at this time.

Rund was charged Thursday with one count of Arson of Forest Land, one count of Arson During a State of Emergency and one count of Possession of Flammable Material or an Incendiary Device. Bail was set at $750,000.

"Because of the recent fires in our local mountains, we are all aware of the inherent danger and risk to lives and property due to uncontrolled fires," District Attorney Ramos is quoted as saying in a press release sent by his office. "We will not tolerate anyone putting all of us at risk by reckless and unlawful behavior. We intend to prosecute every instance of arson to the fullest extent of the law."

Anyone with information is asked to call the San Bernardino County Sheriff's Department or the anonymous WeTip line at (800) 782- 7463.

Beau Yarbrough can be reached at 956-7108 or at beau@hesperiastar.com.