So, on a recent trip to town, instead of riding the tram to the top of Rendezvous Mountain, I drove straight past the turnoff for the downhill ski area to the Trail Creek Nordic Training Facility, about nine miles from the town of Jackson. The training center has 10 miles of trails groomed for classic and skate skiing that loop around meadows and into the adjacent Bridger-Teton National Forest ($20 daily fee). After meandering through a meadow on my cross-country skis, I herringboned up the aptly named Grunt Hill, a short but abrupt climb.