Cache is not at the posted coordinates. to get the Cordinates you will need to go to them and get the information to solve the following
N 42 52._ _ _
To get this number you must go to the Smith, there you will find the faces of two men who very influential men in theater history. you then need to take their respective year of death and substract the year of birth from them, then add Persons A number to Person B. Take this number and add 75 to it.
W 076 59._ _ _
Find out the year Queen's A Night at the Opera came out and substract the year the Smith Opera House first opened its doors from it. Add 18 to it.