Information on it can be found here: Our Lady of the Rockies Website.
The statue is 90 feet in height and is a stunning eggshell white color. Despite its enormous size, it can't be seen as well as might be expected (it's 3500 feet above the city and a few miles away).
Below are some photos from the web site:
|Our Lady--photo taken from Berkeley Pit, Butte, Montana|