{"data":{"id":"us-dc/d.c.-code-1-165.01","jurisdiction":"us-dc","citation":"D.C. Code § 1-165.01","heading":"Legislative findings.","body":"(a)\nPotomac Bluestone is a metamorphic rock that has a long and distinguished history in the District of Columbia.\n\n(b)\nBefore the founding of our nation, Potomac Bluestone was quarried by Native Americans and used by early colonists. Later, District residents, including Italian immigrants and African Americans, followed in the footsteps of the first Americans and also quarried this ancient and important rock.\n\n(c)\nPotomac Bluestone has been used extensively in construction in the District of Columbia.\n\n(d)\nPotomac Bluestone was used as the foundation for the White House, the Capitol, and the Washington Monument.\n\n(e)\nMany houses in the northwest section of the District are also made of Potomac Bluestone, including the Old Stone House in Georgetown, which was built in 1765.\n\n(f)\nOther notable area structures with Potomac Bluestone are Georgetown’s Healey Building, St. Elizabeths Hospital, the Chain Bridge abutments, and the sea wall at Hains Point. The rock is also at the National Zoo, in the Panda House, the Elephant House, and the Mane Restaurant.","path":["Title 1. Government Organization.","Chapter 1. District of Columbia Government Development.","Subchapter IV-A. Official Rock of the District of Columbia."],"source_url":"https://code.dccouncil.gov/us/dc/council/code/sections/1-165.01","current_through":"2026-08-20 (D.C. Law 26-175)","vintage":"","retrieved_at":"2026-08-29T05:44:07Z","sha256":"69584537016a1662768bd548e207da231b65f90d419cc511e3f47592cfab725b","source_id":"us-dc","stale":false,"prev":"us-dc/d.c.-code-1-161","next":"us-dc/d.c.-code-1-165.02"},"notice":"GroundRules: Original legal text. Not legal advice."}