There are 57 previous reviews, so I am only going to talk about how the secret location was pointed out by the shadow of the rock pillar. I will ignore the obvious problem that shadows get shorter as the Sun rises. 1) It may only point correctly on 1 or 2 days of the year. For example, the first day of Summer, or 1 month before and after the first day of Summer. The rising point of the Sun changes with the seasons. This mess was mentioned in the Lust for Gold movie, in that case regarding the Moon. 2) A real shadow would sweep across the ground and the walls of the canyon - from left to right in the morning. So how would you know when it is aiming at the correct spot? I guess they were thinking of a scenario where the Sun or Moon would be lined up with a narrow passage so that only one place could be illuminated, or only one place the shadow would fall. The day of the year would still be important for this to work.
Review of Mackenna's Gold
