SAN FRANCISCO — Firefighters shimmied down from helicopters in Big Sur and were exploding fallen trees along mountain slopes in far Northern California on Sunday, trying to contain two large groups of wildfires in nearly inaccessible terrain.
More than 42,400 acres have burned in the Trinity Alps Wilderness Area about 200 miles north of San Francisco. Crews were blowing fire lines through trees felled by a windstorm several years earlier.
