The lake is not always frozen solid on warm days. The approach is long and can be frustrating with tricky icy, up-and-down trail for 7-8 miles if the gate is closed.
The approach is by a well-marked trail (still used significantly in winter) to Colchuck Lake. The skin track can go anywhere up the gully.
A beautiful sustained run in a north facing bowl/gully that can hold great powder. The run starts from the Dragontail-Colchuck col with an amazing view south to Rainier and Adams. From there, you just follow the snow covered remnants of the Colchuck Glacier down to the north towards Colchuck Lake. There are no trees on this run so avalanche assessment is a must.