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.

Up river from Table Rock, Ausable [Au Sable] Chasm.

Up river from Table Rock, Ausable [Au Sable] Chasm.

Up river from Table Rock, Ausable [Au Sable] Chasm.

Au Sable Chasm. Jacob's Well, looking out.

Au Sable Chasm. Jacob's Well, looking out.