(Mary Meachum Freedom Crossing) in St. Louis, MO. Adelaide Av. NE 0.4 miles from jct with I70 exit 246B, SE (right) on Hall St. 0.35 miles, NE (left - turns SE) on Prairie Av. 0.5 miles. Park & walk S. on Riverfront Trail 0.2 miles to the cake on the E. side. (N38 40.586 W90 11.450) Photos by Jack & June Schmidt 3-28-14.