Container is NOT at the posted coordinates. That is the location of a large colorful mural depicting Columbia and its history. Visit the mural, collect some information, and use that information to obtain the coordinates of the small container nearby. Bring your own pen and be stealthy because it is beside the well-used trail.
Container is located low and tethered at
N 40 02.ABC W 76 30.DEF with
A = number of great blue herons (standing tall bird with long legs and beak)
B = number of fish PLUS number of kayaks
C = number of people standing in background of bikers and runners
D = in depiction of historic Columbia, number of tall arched windows on building on right side of street PLUS number of yellow awnings on left side of street (there is one yellow awning in background picture in gallery)
E = number of bridge arches with obvious bright green trees visible beneath them
F = number of people with engine 861
Checksum A + B + C + D + E + F = 20
Television news report about the mural.
Congratulations to Woosa on the First-To-Find.