National Register of Historic Places listings in Custer County, Montana
# National Register of Historic Places listings in Custer County, Montana

This is a list of the National Register of Historic Places listings in Custer County, Montana. It is intended to be a complete list of the properties and districts on the National Register of Historic Places in Custer County, Montana, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.

There are 18 properties and districts listed on the National Register in the county.

This National Park Service list is complete through NPS recent listings posted July 21, 2023.

## Current listings

| | Name on the Register | Image | Date listed | Location | City or town | Description |
| - | - | - | - | - | - | - |
| 1 | Carriage House Historic District | Carriage House Historic District | June 7, 1991 (#91000720) | Roughly bounded by Main, N. 9th, Palmer, N. 10th, Orr, and N. 13th Sts. and Montana Ave. 46°24′35″N 105°50′41″W﻿ / ﻿46.409722°N 105.844722°W﻿ / 46.409722; -105.844722﻿ (Carriage House Historic District) | Miles City | |
| 2 | East Main Street Residential Historic District | East Main Street Residential Historic District | January 10, 1990 (#89002171) | 1600-2315 E. Main St. 46°24′31″N 105°50′07″W﻿ / ﻿46.408611°N 105.835278°W﻿ / 46.408611; -105.835278﻿ (East Main Street Residential Historic District) | Miles City | |
| 3 | Fort Keogh | Fort Keogh More images | March 8, 1978 (#78001680) | 2.5 miles (4 km) southwest of Miles City 46°22′50″N 105°53′09″W﻿ / ﻿46.380556°N 105.885833°W﻿ / 46.380556; -105.885833﻿ (Fort Keogh) | Miles City | |
| 4 | William Harmon House | William Harmon House | September 25, 1986 (#86002747) | 1005 Palmer 46°24′36″N 105°50′48″W﻿ / ﻿46.41°N 105.846667°W﻿ / 46.41; -105.846667﻿ (William Harmon House) | Miles City | |
| 5 | Holy Rosary Hospital | Holy Rosary Hospital More images | January 15, 2009 (#08001324) | 310 N. Jordan and 2007 Clark St. 46°24′40″N 105°50′08″W﻿ / ﻿46.411028°N 105.835539°W﻿ / 46.411028; -105.835539﻿ (Holy Rosary Hospital) | Miles City | |
| 6 | Ismay Jail | Ismay Jail | June 4, 1997 (#97000501) | Jailhouse Rd. west of its junction with East St. 46°29′53″N 104°47′34″W﻿ / ﻿46.498056°N 104.792778°W﻿ / 46.498056; -104.792778﻿ (Ismay Jail) | Ismay | |
| 7 | Locate Creek Bridge | Upload image | March 26, 2012 (#12000170) | Mile 3 N. Locate Rd. 46°28′30″N 105°18′17″W﻿ / ﻿46.474887°N 105.304602°W﻿ / 46.474887; -105.304602﻿ (Locate Creek Bridge) | Miles City vicinity | part of the Montana's Steel Stringer and Steel Girder Bridges MPS |
| 8 | Main Street Historic District | Main Street Historic District More images | July 21, 1989 (#89000808) | Roughly Main St. from Prairie Ave. to 4th St. 46°24′21″N 105°50′52″W﻿ / ﻿46.405833°N 105.847778°W﻿ / 46.405833; -105.847778﻿ (Main Street Historic District) | Miles City | |
| 9 | Miles City Steam Laundry | Miles City Steam Laundry | July 5, 1979 (#79001400) | 800 Bridge St. 46°24′23″N 105°50′48″W﻿ / ﻿46.406389°N 105.846667°W﻿ / 46.406389; -105.846667﻿ (Miles City Steam Laundry) | Miles City | |
| 10 | Miles City Waterworks Building and Pumping Plant Park | Miles City Waterworks Building and Pumping Plant Park | September 26, 1979 (#79003723) | West of Miles City on Pumping Plant Rd. 46°24′22″N 105°52′05″W﻿ / ﻿46.406111°N 105.868056°W﻿ / 46.406111; -105.868056﻿ (Miles City Waterworks Building and Pumping Plant Park) | Miles City | |
| 11 | George M. Miles House | George M. Miles House | February 17, 1982 (#82003161) | 28 S. Lake St. 46°24′27″N 105°50′12″W﻿ / ﻿46.4075°N 105.836667°W﻿ / 46.4075; -105.836667﻿ (George M. Miles House) | Miles City | |
| 12 | Mountain States Telephone and Telegraph Company | Mountain States Telephone and Telegraph Company | July 21, 1988 (#88001118) | 908 Main St. 46°24′26″N 105°50′44″W﻿ / ﻿46.407222°N 105.845556°W﻿ / 46.407222; -105.845556﻿ (Mountain States Telephone and Telegraph Company) | Miles City | |
| 13 | Northern Pacific Railway Depot | Northern Pacific Railway Depot More images | April 1, 2010 (#10000132) | 500 Pacific Ave. 46°24′13″N 105°51′10″W﻿ / ﻿46.403483°N 105.852772°W﻿ / 46.403483; -105.852772﻿ (Northern Pacific Railway Depot) | Miles City | |
| 14 | Olive Hotel | Olive Hotel More images | October 13, 1988 (#88001117) | 501 Main St. 46°24′21″N 105°51′03″W﻿ / ﻿46.405833°N 105.850833°W﻿ / 46.405833; -105.850833﻿ (Olive Hotel) | Miles City | |
| 15 | Thomas and Beulah Shore House | Thomas and Beulah Shore House | December 18, 2003 (#03001299) | 602 S. Strevell Ave. 46°24′12″N 105°49′57″W﻿ / ﻿46.403333°N 105.8325°W﻿ / 46.403333; -105.8325﻿ (Thomas and Beulah Shore House) | Miles City | |
| 16 | Walrond and Elizabeth Snell House | Walrond and Elizabeth Snell House | September 11, 2003 (#03000923) | 402 S. Lake St. 46°24′16″N 105°50′15″W﻿ / ﻿46.404444°N 105.8375°W﻿ / 46.404444; -105.8375﻿ (Walrond and Elizabeth Snell House) | Miles City | |
| 17 | Ursuline Convent of the Sacred Heart | Ursuline Convent of the Sacred Heart | March 5, 1992 (#92000115) | 1411 Leighton Boulevard 46°24′44″N 105°50′32″W﻿ / ﻿46.412222°N 105.842222°W﻿ / 46.412222; -105.842222﻿ (Ursuline Convent of the Sacred Heart) | Miles City | |
| 18 | US Post Office-Miles City Main | US Post Office-Miles City Main | March 14, 1986 (#86000686) | 106 N. 7th St. 46°24′28″N 105°50′58″W﻿ / ﻿46.407778°N 105.849444°W﻿ / 46.407778; -105.849444﻿ (US Post Office-Miles City Main) | Miles City | |
