A backcountry skier swept 2,000 feet down a mountainside by an avalanche in Grand Teton National Park remained in critical condition Wednesday. Park officials said Andy “Adam” Smith, 32, of Jackson suffered life-threatening internal and leg injuries in Sunday’s slide. He was rescued by Jackson Hole Mountain Resort ski patrol and by park rangers and flown to St. John’s Medical Center in Jackson. From there he was taken to LDS Hospital in Salt Lake City, where he remained Wednesday. The Bridger-Teton National Forest Avalanche Center rated Wednesday’s avalanche danger in the Tetons “considerable” in middle and high elevations and “low” in low elevations.