This is a multi cache with only two locations. The final cache only contains the log book so make sure the bring a writing utensil with you so you can sign. Parking can be found within walking distance on either side of the bridge, and the final cache is within walking distance as well.
Once on the bridge you will need to use all the information signs located there to get the coordinates for the second location.
A= the highway that crossed the Main Avenue bridge beginning in 1934
B= difference in elevation from Wahpeton to Lake Winnipeg
C= difference in elevation from Fargo to Grand Forks (use the elevation of Fargo on the stepping stones showing the flow of the river)
D= how many years the original Main Avenue bridge stood
E= number of miles the Métis traveled with their carts in a day
F= percentage of North Dakota farmers that owned cars by 1930 (use the number, not the decimal)
G= number of months in the shipping season for steamboats on the Red River
Location 2:
N 46° A. (B + C +1)
W (D + E + 18)° ((F - (G x 6)) + 1). 733