Portlandville, New York

Spring Brook is a river located in central Otsego County, New York. The creek drains Arnold Lake and flows south before converging with Goodyear Lake, which is an impoundment of the Susquehanna River, by Portlandville, New York.

Goodyear Lake is a man-made lake created by the building of the Colliersville Dam. The lake is located southwest of the hamlet of Portlandville in the Town of Milford in Otsego County, New York.

Susquehanna State Forest is a New York State Forest in Otsego County, New York. it has a land area of 423 acres, The Susquehanna river flows through the middle of the forest. A boat ramp is available for patrons to use. Recreational activities are allowed by park management. Hunting is allowed when the time is appropriate and the season is ongoing. Fishing opportunities are similar to that of most of the Susquehanna river. There are no designated trails of any type; only an unpaved road.

The Schenevus Creek is a river located in southern Otsego County, New York. The creek flows through Worcester and Schenevus before converging with the Susquehanna River in Colliersville, New York.

Potato Creek is a creek that flows into Schenevus Creek east-northeast of Cooperstown Junction, New York.

Crumhorn Lake is a lake located northeast of the hamlet of Portlandville in the Town of Milford in Otsego County, New York.

Robert V. Riddell State Park is a 2,163-acre (8.75 km2) state park in Otsego and Delaware counties, New York. The park is located approximately 20 miles (32 km) from Cooperstown.

The Village of Milford is a village in the northeastern part of the Town of Milford, in Otsego County, New York, United States. It is located northeast of Oneonta. As of the 2010 census, the village had a population of 415.

Stonehouse Farm is a historic home located at Oneonta in Otsego County, New York. It was built in 1820 in the Federal style. It is a 2+1⁄2-story cross-gable stone house, with 1+1⁄2-story flanking wings set back from the front elevation. It features a wooden portico supported by two clusters of three Doric order columns built about 1950.It was listed on the National Register of Historic Places in 1980.

Cherry Valley Creek is a 34.1-mile-long (54.9 km) headwater tributary of the Susquehanna River in central New York, United States. Cherry Valley Creek flows southwesterly through the Cherry Valley in Otsego County, making its way through the towns of Cherry Valley, Roseboom, and Middlefield before joining the Susquehanna River east of the village of Milford.

Gifford Hill is a small mountain chain in the Central New York Region of New York. It is located northeast of Oneonta, New York. It is made of three main peaks the highest being 1928 feet. Gifford Hill is named for the Gifford Family who moved to the area in 1803 and settled along the Oneonta Creek on what is now called Gifford Hill.The west side of Gifford Hill drains into Oneonta Creek and the east side of the hill drains into Gifford Creek.

Webb Hill is a mountain located in the Catskill Mountains of New York north of Davenport Center. Dutch Hill is located southeast, and Mine Hill is located south of Webb Hill.