Wheeler Peak, Great Basin NP - Nevada

Wheeler Peak, the towering glory of Great Basin National Park, is the location of a grove of 5,000 year old bristlecone pines, the world's oldest living trees. At an elevation of 13,063-feet, it is Nevada's second highest mountain (after Boundary Peak); the Wheeler Peak Scenic Drive climbs almost 4.000 feet in just 12 miles.

If you go:
From the trailhead at the top of the drive it's a 1.4 mile hike to the bristlecones (this doesn't sound much but you'll be climbing from 9,800 to 10,400 so the thin air can make it tough going).

Phone Numbers:

Park Headquarters
+1 (775) 234-7331