The final cache container is NOT at the listed coordinates, this puzzle must be solved first to discover those coordinates.
Here are the final coordinates: N 44 14.THE W 124 04.COP
Be careful on these narrow one lane roads, you never know what you might meet around that corner. Coordinates could be a little loose here with all the trees and mountains.
Appropriate driver response to traffic control devices are important. Driver failure to obey a traffic control device, is a violation of Oregon law. If the driver makes a response to a traffic control device that is not permitted they could be subject to a fine or cause an accident.
So, ever mess up and run afoul of the law because you didn't do the appropriate turn, stop or other traffic infraction? Or be involved in an accident because of an infraction? Ever since the automobile was invented the need for traffic control has been evident. The more powerful, larger, faster and maneuverable vehicles are, a great need for sensible traffic laws are necessary.
Here is the puzzle:
Early traffic control might have been done by a policeman at an intersection. 
There is no need for a check sum on this one! Those were the good ol' days!