Find the date on the plaque commemorating the metal artwork
structure at the posted coordinates.
To find the location of the final stage:
Subtract 1,051 from the date and substitue the answer for the last
3 digits in the West coordinates
Subtract 1,394 from the date and substitute the answer for the last
3 digits of the North coordinates.
Ybbx sbe gur qbhoyr gerr. Pnpur vf ybpngrq jvguva 15' bs gur gerrf. Va gur "Tenff".