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Dunham Reservior is a 100-acre reservior that is south of the main portion of Grafton Lakes State Park. Good fishing and paddling, with an interesting shoreline to explore, with designated trails running around the lake. No fee for this area! The closest shoreline launch is from Johnson Road, but there is also a parking lot on Dunham Reservior Road, with a short gated road you can portage from too.
https://andyarthur.org/grafton-lakes-state-park
http://nysparks.com/parks/53/details.aspx
Olana State Historic Site was the home of Frederic Edwin Church (1826β1900), one of the major figures in the Hudson River School of landscape painting. The centerpiece of Olana is an eclectic villa composed of many styles, difficult to categorize, which overlooks parkland and a working farm designed by the artist. As well, the residence has a wide view of the Hudson River valley, the Catskill Mountains and the Taconic Range. Church and his wife Isabel (1836β1899) named their estate after a fortress-treasure house in ancient Greater Persia (modern-day Armenia), which also overlooked a river valley.
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Island located below the Rip Van Winkle Bridge that is marshy with some areas built up on spoils from the river, often used as a stop over for boats and duck hunters. A foot trail leads from the southern tip of the island through the middle of the property. Poison ivy is prevalent throughout the island.
https://andyarthur.org/rogers-island-wma
http://www.dec.ny.gov/outdoor/8297.html