2 entries match your criteria. Related Historical MarkersTo better understand the relationship, study each marker in the order shown. By Richard E. Miller, August 4, 2008 Washington Meridian Marker - on wall to the right of stairwell SHOWN IN SOURCE-SPECIFIED ORDER1► District of Columbia (Washington), Columbia Heights — Washington Meridian — "The Stone" — 1804 - 1923 — 2► District of Columbia (Washington), Downtown — Zero Milestone — President's Park —