Approximately how far vertically (elevation change) is it from the top of the Inyo Mountains to Owens River?

Question

Approximately how far vertically (elevation change) is it from the top of the Inyo Mountains to Owens River?

Answer 1

Altitude squared + Ground distance between mountain peak and river squared = Elevation change distance squared.  Pythagorean Theorem.  

Or, Rise (altitude) over Run (ground distance) = Slope (elevation change distance).