Sheriff Juan Figueroa Town Hall – September 19, 2026
Denning residents are invited to attend a Town Hall with Ulster County Sheriff Juan Figueroa for an important discussion regarding public safety in our community.
Inaugural Claryville Headwaters Chamber Music Festival
The Hudson Valley has a brand-new music festival kicking off this Labor Day weekend!
Rebuilding Day Applications are now Available!
We’re asking for your help in spreading the word about our Rebuilding Day Program to your community members who rely on your resources.
Denning, NY
Town of Denning, located in Ulster County NY, is comprised of three distinct areas. The valley of the West Branch of the Neversink River, now referred to as Frost Valley and Round Pond areas. The East Branch of the Neversink River known as the Denning Valley included the hamlets of Denning, Ladleton, Red Hill, and Dewittville. The Sundown Area included hamlets of Sundown, Peekamoose, Bull Run, Dymond City, Greenville, and Yeagerville.
These areas were part of a tract given by the English Queen Anne to one Johannes Hardenberg in 1708. The Hardenberg Patent was surveyed in 1749 and divided into lots. Denning covers parts of great lots 6 and 7 which were further divided into lots which were sold to investors and called tracts. William Denning eventually purchased 19,169 acres when a Philadelphia land grant corporation failed to pay taxes. After Denning’s death William H. Denning purchased some 24,000 acres which were again surveyed and divided into lots and sold.