WORDS:

The Yukon Quest

gruelling: demanding - to mush: to drive a dog-sled - trail: track (don't confuse with trial ) - runners: the flat parts under a sled - wastes: empty terrain - set in: gets established - gravel: small stones and sand - crawl: very slow pace - course: itinerary - fit: in good form - paramount: primary - assess: analyse, judge - rely pronounced [ri'lai]: depend