challenge: What is the typical elevation range for oroboreal subalpine forests like those found on Hayrick Butte's north-facing slope?
  
  A. Above 6,000 feet (1,800 m)
  B. Below 3,000 feet (900 m)
  C. Between 4,900 and 5,500 feet (1,500-1,700 m)
  D. Below 4,000 feet (1,200 m)
  Answer: 