Imperial staff (Shadows: Awakening)

Chapter I. the Task: the Imperial staff.
When performing tasks, according to the markers on the minimap, visited the tomb of
General Varela, found his letter that the staff he hid in the watchtower
in the Rocky mountains. The staff were Brilliant Timelessness, which is hidden
in the tomb in the pass of the Dead eagle. During fermentation the signs
the minimap, the job turned into a Collect the Imperial staff, and the tokens
of course, lead to the Magic anvil for Assembly staff.
But where to find its components, the staff and Brilliant, accurate
instructions no. We only know approximately where the staff where
A diamond and what to get to diamond is possible only with a stick.
But where to find this watch tower, where these Rocky mountains, is not clear?
The pointer of the task on the map, only to be fooled.
Prompt, please, where to go?