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The lake in early March
Welkinweir is located in Pennsylvania
Welkinweir is located in the US
Location 1368 Prizer Rd., East Nantmeal Township, Pennsylvania
Coordinates 40°9′13″N 75°40′55″W / 40.15361°N 75.68194°W / 40.15361; -75.68194Coordinates: 40°9′13″N 75°40′55″W / 40.15361°N 75.68194°W / 40.15361; -75.68194
Area 162 acres (66 ha)
Built 1940
Architect Tobiessen, Fridtjof
Architectural style Colonial Revival
NRHP Reference # 01000953[1]
Added to NRHP September 7, 2001

Welkinweir is a 197-acre (80 ha) nonprofit arboretum, garden, mansion, and conservation area located at 1368 Prizer Road, East Nantmeal Township, Pennsylvania, United States, near Pottstown. It is part of the Hopewell Big Woods. It is open to the public daily without charge.

Welkinweir was the home of Everett and Grace Rodebaugh, founding members of the conservation-minded Green Valleys Association, who bought the site in the 1930s and spent decades improving it. Their house was built in 1940, building upon a much smaller house, built in two sections c. 1750 and c. 1830. The architect Fridtjof Tobiessen designed the 1940 mansion.[2] The property was placed into a conservation easement in 1976, donated to the association in 1997, and is now its headquarters and educational center. In 2001, the estate was listed on the National Register of Historic Places.

Its arboretum includes cherry, dogwood, dwarf evergreens, franklinia, magnolia, Japanese maple, swamp and sugar maple, and sweetgum, as well as azaleas and rhododendrons.

See also[edit]


  1. ^ National Park Service (2010-07-09). "National Register Information System". National Register of Historic Places. National Park Service. 
  2. ^ Estelle Cremers, 2001, NRHP Nomination Form - Welkinweir, accessed October 29, 2010. Enter "public" for ID and "public" for password to access the site.

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