William Porter: Meadow on the North Rim Parkway [GCV3]
William Porter: Vermillion Cliffs [GCV3]
William Porter: Catherine at the "ice cream cone" [GCV3]
William Porter: Navajo Bridge [GCV3]
William Porter: Little Colorado River at Navajo Bridge [GCV3]
William Porter: At the Little Colorado River Gorge [GCV3]
William Porter: Little Colorado River Gorge [GCV3]
William Porter: Warning at Little Colorado River Gorge [GCV3]
William Porter: Catherine and the muddy shoe [GCV3]
William Porter: Grand Canyon from the southeast [GCV3]
William Porter: Colorado River and Grand Canyon [GCV3]
William Porter: Grand Canyon at sunset [GCV3]
William Porter: Unknown photographer sizing up the canyon [GCV3]
William Porter: As we start down the Bright Angel Trail [GCV3]
William Porter: Going down the Bright Angel Trail [GCV3]
William Porter: Looking back up from the trail [GCV3]
William Porter: Ranger Catherine on the Trail [GCV3]
William Porter: Taking a break on the trail [GCV3]
William Porter: Bright Angel Trail [GCV3]
William Porter: Century Plant [GCV3]
William Porter: Snack break before heading back up [GCV3]
William Porter: Group shot before we start back up [GCV3]
William Porter: Trail Rider [GCV3]
William Porter: Looking up from the trail [GCV3]
William Porter: On the Bright Angel Trail [GCV3]
William Porter: Rider on the trail [GCV3]
William Porter: Bright Angel Trail [GCV3]
William Porter: View from the Trail [GCV3]
William Porter: Catherine finally found a stick [GCV3]
William Porter: Grand Canyon Village, from the west [GCV3]