This cache is NOT at the posted coordinates.
Enjoy the beautiful view. Location is a short walk and climb to GZ. Determine the following trivia to calculate the final coordinates.
Average Lake Tahoe surface elevation in feet - A
Maximum depth as recorded by the 1998 bathymetric measurement in feet - B
Lake Tahoe is the C deepest lake in the world according to geology.com.
Final Coordinate minutes ignoring the decimal are:
N Posted Minutes ignoring the decimal+ A+B-7654
W Posted Minutes ignoring the decimal+B+C-1667
After calculations, replace the decimal (XX.XXX) to get the minutes.
Posted coordinates are a convenient turnoff from Emerald Bay Road.
You can check your answers for this puzzle on Geochecker.com.