This coverage is made possible through the generous support of Marty and Kathy Hall and A Hall Mark of Excellence Award. Learn more about A Hall Mark of Excellence Award—or about supporting FasterSkier coverage—by contacting info@fasterskier.com. 7.5 kilometers, 27 hairpin turns, up a fjord. For the better part of two decades, the climb up the Lysebotn Opp has marked the high point, figurative and literal, of cross-country skiing’s summer calendar. Last year, that point was...