A former section of Highway 1A exists along the former Kicking Horse Trail, the original road between Lake Louise and Golden, British Columbia that opened in 1926. When the Trans-Canada Highway was realigned in 1962, the segment became Highway 1A. It began at British Columbia Highway 1, west of the Alberta border in Yoho National Park. It meandered eastward through Kicking Horse Pass to Lake Louise, generally paralleling the main Highway 1 and CPR rail line to the south. The section between Lake Louise (townsite) and Lake Louise (lake) is known as Lake Louise Drive, while the remainder of route is now closed to vehicle traffic and is part the Great Divide hiking trail. 17 Avenue SE Highway 1A used to be an alternate route that followed 17 Avenue SE in Calgary and linked with Highway 1 in Chestermere. It began at Highway 2 (Deerfoot Trail) and Blackfoot Trail interchange and continued east along 17 Avenue SE where it passed through the former town of Forest Lawn. It crossed 116 Street SE, entering Chestermere and terminated at the Highway 1 interchange. It was dropped by the province in 2013 and the section within Chestermere was renamed to Chestermere Boulevard. As of 2016, remnant Highway 1A signage still remains on Deerfoot Trail and sections of 17 Avenue SE within Calgary; however, it has been removed along Stoney Trail, through Chestermere, and along the Trans-Canada Highway. Downtown Calgary The existing Bow Valley Trail / Crowchild Trail section and former 17 Avenue SE section of Highway 1A used to be connected by following a series of streets through inner-city Calgary. From its present terminus, Highway 1A followed 16 Avenue NW east and was cosigned with Highway 1 to 14 Street NW. Highway 1A turned south, and after crossing the Bow River using the Mewata Bridge, and then branches east at its interchange Bow Trail. Highway 1A passed through downtown Calgary on a pair of one-way streets, with eastbound traffic following 9 Avenue S and westbound traffic following 6 Avenue S. East of 6 Street SE, both directions of Highway 1A followed 9 Avenue SE, crossing the Elbow River on the Inglewood Bridge and passing through the community of Inglewood, linking with eastern section of Highway 1A by either using 16 Street SE and Blackfoot Trail, or directly along 17 Avenue SE. This section of Highway 1A was dropped in the 1970s. Brooks –