The cache is not at the posted coordinates. In order to find the final cache container, you will need to first complete the Adventure Lab “The Man Who Fed a Billion People”. The final coordinate numbers corresponding to the letters below will be given in the journal entries after the completion of each stage.
N 43° 13.AAB W 92° 13.CDD
This adventure lab will take you on a tour of the grounds of the childhood home of a hometown hero, Norman Borlaug, who is better known in third world countries than he is in the United States. Learn about his important contributions that helped feed billions.
Wifi is available on site. Use the NBHF-guest network; password: b0r1aug29. This information is also at the posted coordinates. There is no admission fee. Please visit only during daylight hours.

You can validate your puzzle solution with certitude.