The Potomac Bluestone is hereby designated the official rock of the District of Columbia.
Potomac Bluestone
D.C. Code § 1-165.02 — under Official Rock of the District of Columbia..
D.C. Code § 1-165.02
D.C. Code § 1-165.02 — under Official Rock of the District of Columbia..
D.C. Code § 1-165.02
The Potomac Bluestone is hereby designated the official rock of the District of Columbia.