Valhalla, also known as Rosedale, is a historic home located at Poolesville, Montgomery County, Maryland, United States.
It is a two-story house constructed of local Seneca sandstone, to which are attached a c. 1835 1+1⁄2-story log structure, and two small 20th-century one-story frame wings.
[2][3] Valhalla was listed on the National Register of Historic Places in 1982.
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