Everyone who visits, passes through or lives in Alaska likes quoting a statistic about Mt. Denali, North America’s tallest mountain. The oft-quoted stat isn’t Denali’s height – 20,310 feet, or 6,770 yards – above sea level. No, the oft-repeated statistic folks love, but few verify, is that only 30% of visitors trying to see Denali actually do, given the persistent clouds often blocking their view. This content is restricted to subscribers of OutdoorNews.com.