Joseph Diller in his report on the geology of Crater Lake (Professional Paper, No. 3, Series B. Descriptive Geology, 22), mentions a phenomenon occasionally observed in the lake. A tree becoming dislodged may slide from the cliffs root foremost, and come to rest with the lower portion in the water. The root mass then becomes water-logged, and later the tree may be pushed out into deeper water and will float upright. A tree in this position has occassionally become lodged near the shore again and is often pointed out as evidence that the lake level has risen. Conclusions from one tree would hardly be acceptable, but nevertheless this is often the case.

A tree in the position described is now lodged near the shore of Wizard Island, on the southeast side.