The Tenaya Fire located between the Tioga Pass Road and the north rim of Yosemite Valley on both sides of the Lahamite Creek Trail, began during the afternoon of Monday, 9/7 and spread quickly to about 500 acres. Active suppression by large flame retardant carrying air-tankers is underway to prevent its spread. These activities have been readily visible from our tours during the last four days with spectacular drops onto the fire area.