Penn Yan, N.Y. - Authorities have banned boats from one of the Finger Lakes and places speed restrictions on three others because of high water levels caused by last week's flooding.

Heavy rains caused severe flooding that resulted in extensive damage in neighboring Yates and Ontario counties southeast of Rochester.

The Yates County Sheriff's Office has banned power boats from Keuka Lake until the water recedes. Sheriff Ron Spike says displaced docks and trees up to 40 feet long have been spotted floating in the lake.

Boating speed limits of no more than 5 mph are in effect for parts of Seneca, Canandaigua and Honeoye lakes because of high water and floating debris.

Officials in Ontario County are advising boaters on Canandaigua and Honeoye lakes to steer well away from shore because many docks remain submerged.