The cache is not at the posted coordinates... it is on this page... N 53° 48.097' W 112° 45.838'
Star, Alberta
In 1892 John Duncan Campbell settled on the Victoria Trail near Beaver Creek. Across the trail, Ed Knowlton built a store and a post office and named it Edna for his daughter. In 1900, the post office was moved to the Campbell house and renamed Star. In 1905, the hamlet was moved building by building to what is now Lamont.
In 1928 the Canadian Pacific Railway was built 1.5 km north of the original Star. The post office was moved there in 1929, and the new hamlet became Star. The community was a major centre for grain transport, supported three stores and a car dealership. - Lamont County Website
Hadar (also known as Agena)
Is a star that is visible from the Southern Hemisphere. It is the second-brightest star in the constellation Centaurus — another name for it is Beta Centauri — and the 10th brightest star in Earth's night sky.
Like many bright stars, however, appearances are not everything: Hadar is actually a group of three stars. Hadar itself is a pair of twin B-class stars, while 210 Earth-sun distances away lies Hadar-B.
-Space.com
This cache is large enough that if you don't find it - it may not be there.. possible snow issues in the winter.