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Historical Markers in Lanham
Upper Marlboro is the county seat for Prince George's County
Lanham is in Prince George's County
Prince George's County (679) ► ADJACENT TO PRINCE GEORGE'S COUNTY Anne Arundel County (599) ► Montgomery County (778) ► Washington, D.C. (2890) ► Alexandria, Virginia (449) ► Fairfax County, Virginia (745) ►
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| On Annapolis Road (Maryland Route 450) at Baltimore Lane when traveling south on Annapolis Road. |
| Near Hanover Parkway west of Village Park Drive, on the right when traveling west. |
Nov. 13, 2026