{"id":695,"featured":0,"modified":"2026-04-17 19:40:08","latitude":46.59153009999999994761310517787933349609375,"longitude":-112.0369196000000329149770550429821014404296875,"title":"Colorado Building","subtitle":"Helena Historic District (Boundary Increase)","fullsize":"https://mail.historicmt.org/files/fullsize/b2a5fbee0cf288c5c1a78454e82dba63.jpg","address":"435 North Last Chance Gulch, Helena, Montana","all_locations":[],"zoom":17,"creator":["Montana National Register Sign Program"],"description":"The Colorado Building is a rich illustration of Helena’s commercial blossoming during the early twentieth century. The Mountain States Telephone and Telegraph Company built the structure in 1922, thereby completing this block in the town’s more sparsely developed northern end. The upper two floors once served as company offices, accessed by a central doorway. The ground floor, tucked into the hillside, originally housed the Wright Furniture Company and Kenneth R. Rorabeck Drugs.","sponsor":null,"accessinfo":"Private","lede":"","website":"","related_resources":["<a href=\"https://npgallery.nps.gov/NRHP/GetAsset/4d30472c-22f0-4ffd-806b-4ba2bd498ddb\" target=\"_blank\" rel=\"noreferrer noopener\">Read about the Helena Historic District (Boundary Increase)</a>","<a href=\"https://npgallery.nps.gov/NRHP/GetAsset/31a55ba3-4fc3-4806-be91-ce5e302929ab/\" target=\"_blank\" rel=\"noreferrer noopener\">See photos of the Helena Historic District (Boundary Increase)</a>"],"factoids":[],"files":{"https://mail.historicmt.org/files/fullsize/b2a5fbee0cf288c5c1a78454e82dba63.jpg":{"id":3293,"mime-type":"image/jpeg","title":"Colorado Building","description":"Colorado Building. Front to side view of the building, facing northeast on North Last Chance Gulch. Digital photograph. | Montana Historical Society | Jan. 2020 | Michael Connolly","thumbnail":"https://mail.historicmt.org/files/square_thumbnails/b2a5fbee0cf288c5c1a78454e82dba63.jpg"},"https://mail.historicmt.org/files/fullsize/6a4f27eb8d8fc380c83248999d97cd50.jpg":{"id":3294,"mime-type":"image/jpeg","title":"Colorado Building","description":"Colorado Building. Front view of the building, facing east on North Last Chance Gulch near the intersection of North Last Chance and Placer Street. Digital photograph. | Montana Historical Society | Jan. 2020 | Michael Connolly","thumbnail":"https://mail.historicmt.org/files/square_thumbnails/6a4f27eb8d8fc380c83248999d97cd50.jpg"},"https://mail.historicmt.org/files/fullsize/6c414594d4ff3949d835d088b278157e.jpg":{"id":3295,"mime-type":"image/jpeg","title":"Colorado Building","description":"Colorado Building. Front to side view of the building, facing southeast at the intersection of North Last Chance Gulch and Placer Street. Digital photograph. | Montana Historical Society | Jan. 2020 | Michael Connolly","thumbnail":"https://mail.historicmt.org/files/square_thumbnails/6c414594d4ff3949d835d088b278157e.jpg"}}}