The McMillan Plan
The Mc Millan plan seeks to restore the symmetry of the map that was disrupted by moving the Wash Mmt.
Remember that the 'central' point being emphasized in the 1901 plan, that was never fully implimented by the way, is actually south of the real axial center because the Wash Mmt is 123 feet south of the line due west of the center of the CB. Thg line from the CB through the monument to the Lincoln Mml is running about one degree south of due west.
The true axial center is located by the Jefferson Pier today.