When Fishing/Caching there are difficult fish/caches to capture. For me in fishing it is the Muskie.... Wow it is really just a big northern, but is more difficult to catch a Muskie than a similar sized Northern Pike and way tougher than any pan fish. Trolling with large lures made for Muskies is your best bet. You can usually expect 1-2 a day if you give it a solid effort. Another way to catch them is by casting around structures, but they do call them the fish of a thousand casts, since you have to cast so many times to finally bring one in.
There is something that is as difficult as Muskie Fishing and can help you along your way when you are out fishing, Meteorology. These weather reports are valuable and can tell you where to fish and when not to fish, could save your life.
45.118047-93.428442 = ????
Coordinates will take you to a sign that will give you a very long keyword!!!!!
You can validate your puzzle solution with certitude.