After almost three weeks of digging and burning fire lines on steep mountainsides, firefighters have achieved 100% containment of the Hidden fire burning in Sequoia National Park.Since it began with a lightning strike from a passing Sierra thunderstorm, the Hidden fire has burned about 3,700 acres in the mountains north of Three Rivers. Fire continues to burn within the containment lines, but is expected to diminish as it uses up the available dry fuels. Infrared scans of the fire Tuesday night showed very little intense heat from the fire. ...