Here is a picture comparing OP's image with the image of the monument at Wikipedia to confirm Jon Custer's answer:
If we look at the tree at the right behind the column it seems as if the time was also roughly the same (maybe a bit later?).
Edit there is some discusion in the comments that need the whole picture.
That is all I could get out of the scan.
That looks a great deal like the Astoria Column, in Astoria, Oregon at the mouth of the Columbia River. In particular, the image from Wikipedia show a similar base and top part. While a bit difficult to pick out on your photo, you can also see the spiraling frieze of scenes from Oregon history.
As an aside, my grandfather was born and raised in Astoria in ...