Writing-on-Stone Provincial Park contains the greatest concentration of rock art on the North American Great Plains. There are over 50 petroglyph sites and thousands of works. The park also showcases a North West Mounted Police (NWMP) outpost reconstructed on its original site.

The park comprises 17.80 square kilometres (4400 acres) of coulee and prairie habitat, and boasts a diverse variety of birds and animals.

Writing-on-Stone Provincial Park is located about 100 kilometres southeast of Lethbridge, Alberta, Canada or 44 kilometres east of the community of Milk River, and straddles the Milk River itself.

The park was created in 1957 and was designated an archaeological preserve in 1977. In March 2005, the park was designated a National Historic Site. On June 20, 2007 the park's new visitor centre, with spectacular views of the valley from the north rim, was officially opened.

Water, ice and wind eroded the sandstone to produce the hoodoos and cliffs that are part of the park today.