Bald Mountain (Idaho) km²) of which have snowmaking. The slope ratings are 36% easiest, 42% more difficult, and 22% most difficult. These ratings are relative, not absolute; much of the "easiest" terrain on Bald Mountain would be rated as "intermediate" at most ski areas, as the beginner areas are on the gentler and smaller Dollar Mountain. Sun Valley's Bald Mountain is independent of the Bald Mountain Ski Area, a modest ski hill near Pierce in Clearwater County in north central Idaho. Easiest (Green Runs) More Difficult (Blue Runs) Most Difficult (Black Diamond Runs) In the NBC-TV miniseries, "", this mountain was believed to
Ski The oldest wooden skis found were in what is today Russia (c. 6300–5000 BCE), Sweden (c. 5200 BCE) and Norway (c. 3200 BCE) respectively. Nordic ski technology was adapted during the early 20th century to enable skiers to turn at higher speeds. New ski and ski binding designs, coupled with the introduction of ski lifts to carry skiers up slopes, enabled the development of alpine skis. Meanwhile, advances in technology in the Nordic camp allowed for the development of special skis for skating and ski jumping. This type of ski was used at least in northern Finland and Sweden until