Emerald Ridge along the Wonderland Trail on the west side of Mount Rainier. NPS/C. Roundtree Photo The Wonderland Trail is about 93 miles (150 km) long and encircles Mount Rainier. It is a strenuous hike with about 27,000 feet (8,230 m) of elevation gain and 27,000 feet (8,230 m) of elevation loss, through lowland forests and valleys and into high alpine and subalpine areas. The Wonderland …