Cathedral of Saint Helena

Cathedral of Saint Helena
U.S. National Register of Historic Places
Location	530 N. Ewing St. Helena, Montana, U.S.
Coordinates	46°35′24.53″N 112°1′57.15″W / 46.5901472°N 112.0325417°W / 46.5901472; -112.0325417
Built	1908
Architect	A.O. Von Herbulis (Albert Olszewski)
Architectural style	Gothic Revival
NRHP reference No.	80004270 [1]
Added to NRHP	April 30, 1980

The Cathedral of Saint Helena is the cathedral of the Roman Catholic Diocese of Helena, Montana, United States. Modeled by architect A.O. Von Herbulis after the Votivkirche in Vienna, Austria, the construction began on the cathedral in 1908, and held its first mass in November 1914. Bishop John Patrick Carroll worked tirelessly to raise funds for building the cathedral and had an administrative role in management of the entire project. The cathedral sustained significant damage during the 1935 Helena earthquake, which required extensive renovations. The cathedral was added to the National Register of Historic Places in 1980.