climbingdivers: As ordered by msubobcatgirl, apparently speaking on behalf of the city of bozeman. See her message below.
msubobcatgirl 7:08 PM
Regarding Bent Vent #2 (GC3HD79):
Please do not use this site as a geocache. It Is an air relief for the City Water main into the city of Bozeman. People are removing a protective screen. This is part of the city drinking water system.