Taughannock Falls' main
cataract is a , making it taller than
Niagara Falls. The waterfall is located along
Taughannock Creek, which flows through a long
gorge with cliffs up to high.
Geology and natural history The waterfall and gorge comprise an example of a
hanging valley, formed where Taughannock Creek's stream-carved valley meets the deeper glacially carved valley that contains Cayuga Lake. The gorge has continued to retreat westward from Cayuga Lake as easily eroded
shale near the fall's base is worn away by the stream, which supports erosion-resistant
siltstone and
sandstone found in the upper portions of the gorge. Annual
freeze and thaw cycles also act upon small
faults in the rock, causing large sections to occasionally break away, further expanding the gorge. The gorge supports a "Shale Cliff and
Talus" community of plants, including three regionally rare species classified as
threatened in New York State: Butterwort (
Pinguicula vulgaris), birds-eye primrose (
Primula mistassinica) and yellow mountain saxifrage (
Saxifraga aizoides). == Events ==