Alberta Highway 1A

Highway 1A
Segments of Highway 1A in Alberta
Route information
Maintained by Parks Canada, Alberta Transportation, City of Calgary
Bow Valley Parkway
Length:	51 km (32 mi)
West end:	Hwy 1 at Lake Louise
Major junctions:	Hwy 93 at Castle Junction
East end:	Hwy 1 west of Banff
Bow Valley Trail
Length:	103 km (64 mi)
West end:	Hwy 1 in Canmore
Major junctions:	Hwy 1X near Exshaw Hwy 40 near Ghost Lake Hwy 22 in Cochrane Hwy 201 in Calgary
East end:	Hwy 1 in Calgary
Location
Specialized and rural municipalities:	I.D. No. 9, M.D. of Bighorn No. 8, Rocky View County
Major cities:	Calgary
Towns:	Canmore, Cochrane
Villages:	Lake Louise
Highway system
Provincial highways in Alberta ← Hwy 1 Hwy 1X →

Bow Valley Trail
Length:	89 km (55 mi)
West end:	Hwy 1 in Canmore
East end:	12 Mile Coulee Road, Calgary

Highway 1X
Highway 1X highlighted in red
Route information
Maintained by Alberta Transportation
Length:	4.5 km (2.8 mi)
Major junctions
South end:	Hwy 1 (TCH) west of Seebe
North end:	Hwy 1A east of Exshaw
Location
Specialized and rural municipalities:	Kananaskis I.D., Bighorn No. 8 M.D.
Highway system
Provincial highways in Alberta ← Hwy 1A Hwy 2 →

Provincial highways in Alberta

Alberta Provincial Highway No. 1A is the designation of three alternate routes off the Alberta portion of the Trans-Canada Highway. However, it is not the only name used for spurs off Highway 1 - Highway 1X is another such designation. These highways, however, are not part of the Trans-Canada Highway network, and only have Alberta's provincial primary highway shields instead of the ones used for the Trans-Canada Highway.

The Lake Louise to Banff section of the Banff National Park 1A route is also known as the Bow Valley Parkway. It begins at Highway 1 at Lake Louise, generally paralleling it until it meets Highway 1 again approximately 6 km (3.7 mi) west of Banff. It provides more immediate access to attractions in Banff National Park such as Castle Mountain and Johnston Canyon. This spur has a reduced speed limit of 60 km/h (37 mph), and provides opportunity to view wildlife at various times of the year.

Parks Canada introduced planned and marked pullovers along the route to enhance and educate visitors about the region. The Bow Valley Parkway is one of only two parkways between Lake Louise and Banff, and the only one that allows views of the mountain scenery, waterfalls, and various view points of the nearby rivers and creeks. It was the original highway that connected the valley and is advertised as a "year-round scenic heritage experience".

Parks Canada enacted seasonal travel restrictions along the Bow Valley Parkway on a 17 km (11 mi) segment between the Johnston Canyon Campground to the Fireside Picnic Area (adjacent to the Highway 1 eastern junction). From March 1st to June 25th, travel is not permitted between 8 p.m. and 8 a.m. in order to protect wildlife. Highway 1 can be used as an alternate route.