Falls in winter, Au Sable Chasm.

View in Au Sable Chasm.

Falls in winter, Au Sable Chasm.

Au Sable Chasm, Keeseville, N.Y.

Birmingham Falls, Au Sable River, N.Y.

New York State. Indian Head, Lower Ausable [Au Sable] Pond.

Au Sable Chasm. The Long Gallery.

Au Sable Chasm. The Long Gallery.

Au Sable Chasm, Running the Rapids.

Running the Rapids, Ausable [Au Sable] Chasm, the start.

Running the Rapids, Ausable [Au Sable] Chasm, the start.

Running the Rapids, Ausable [Au Sable] Chasm, the start.

Hell Gate, from below, Ausable [Au Sable] Chasm.

Ausable [Au Sable] Chasm. Birmingham and Horseshoe Falls.

Lake View House, from Birmingham Falls, Ausable [Au Sable] Chasm.

Smuggler's Pass, Ausable [Au Sable] Chasm.

The Broken Needle from Sentry Box, Ausable [Au Sable] Chasm.

The Sentry Box, Ausable [Au Sable] Chasm.

The lower Gateway, Ausable [Au Sable] Chasm.

The Grand Flume, Ausable [Au Sable] Chasm.

The Grand Flume from the Rapids down, Ausable [Au Sable] Chasm.

The Grand Flume, Ausable [Au Sable] Chasm.

The Grand Flume, Ausable [Au Sable] Chasm.

The Grand Flume, Ausable [Au Sable] Chasm.

The Grand Flume, Ausable [Au Sable] Chasm.

Raceway above the rapids, looking up, Ausable [Au Sable] Chasm.

The Sentinel.

The Sentinel from Table Rock, Ausable [Au Sable] Chasm.

Cathedral Rocks and Table Rock from above, Ausable [Au Sable] Chasm.

Cathedral Rocks.