Corona Lake is located just west of Rollins Pass in the James Peak Protection Area. A short trail drops through open tundra and the vestiges of treeline to the lake. This short trail runs by Pumphouse Lake, and is in close proximity to Deadman Lake and the High Lonesome Trail.

Deadman Lake is a headwater of the Middle Fork Ranch Creek

Pumphouse Lake (11,384') and Corona Lake (11,206') form the headwaters of Ranch Creek

The word tundra is derived from a Finnish word meaning 'treeless'

Rollins Pass is 1 mile from the Corona Lake Trailhead, where you can take the High Lonesome Trail 1.3 miles to the King Lake Trail

Corona Lake (11,206'); King Lake is located behind these headwalls on the east side of the Divide

Mount Epworth (11,843'), a scalable peak popular among backcountry skiers for its relative accessibility

It's an easy cross-country trek from Pumphouse Lake to Deadman Lake

A thin ring of trees around Corona Lake provides ample cover for backcountry camping

Alpine grasses and sedges take hold where tundra soil is well-developed

View of James Peak (13,294') on the cross-country descent from High Lonesome to Pumphouse Lake

The James Peak Protection Area spans the east side of the Mammoth Gulch glacial valley

Unlike arctic tundra, alpine tundra soil is well drained

Looking southwest from the trailhead at Deadman Lake (11,281'), accessible by a short social trail

Willows and lingering snow can obscure two separate crossings over the Pumphouse Lake outlet