Erratic Rock (Big Rock) is a historical site and sightseeing attraction located west of the community of Okotoks. The rock is the largest boulder on the Foothills Erratic Train.

- rock20090626 76012
1053 hits - Pathway to Erratic Rock
1080 hits
The pathway leading to Erratic Rock which is located west of the community of Okotoks, Alberta, Canada. - Trailhead
1046 hits
Information signs greet visitors to Big Rock located west of the community of Okotoks, Alberta, Canada. - Trail of Big Rock
1112 hits
The pathway leads to the rock and then loops behind the rock and back to the parking lot. - Big Rock
1147 hits
A chunck of rock left behind from the Ice Age known as Big Rock is located west of the community of Okotoks, Alberta, Canada. - Entrance Information at Big Rock
896 hits
At the trailhead entrance to the Erratic Rock there is an information sign.