At the listing coordinates, you stand atop the fifth largest earth fill dam in the world, Garrison Dam. It was built to develop the Missouri River Basin from 1947-1953. To find the final container, you will need to obtain data from two virtual stages, interpretive signs installed at the indicated coords.
Final coordinates: N 47 AB.CDE W 101 FG.HIJ
Stage 1:
AB= height of spillway gates
C=thickness of stilling basin concrete (n minus 1).
D=spillway discharge capacity: Capacity is noted as nXX,XXX cubic feet per second. (n minus 4).
E=spillway discharge speed in miles per hour: nX mph (n minus 1).
Stage 2:
FG=day noted on interpretive sign as date Lewis & Clark passed through this location, (FG + 10)
H=miles travelled on above date: XH miles
I=width of Lake Sakakawea at widest point: XI miles
J=amount of surface acres of water Lake Sakakawea contains: JXX,XXX surface acres
No overnight parking is permitted, but the cache is available 24/7.
Please feel free to share your photos of the views available!
