A quick 2 stage multi to get you moving along the trail.
At the posted coordinates you will find a sign, collect the numbers to move onto the final.
The final coordinates can be found at N44 54.ABC W092 46.DEF
ABC= In about what year did Lemuel Bolles erect the fist commercial flour mill minus 1367
DEF=The last year that the mill was in operation minus 1000