Gow is an

impact crater An impact crater is a circular depression in the surface of a solid astronomical object formed by the hypervelocity impact of a smaller object. In contrast to volcanic craters, which result from explosion or internal collapse, impact crater ...

Saskatchewan Saskatchewan ( ; ) is a province in western Canada, bordered on the west by Alberta, on the north by the Northwest Territories, on the east by Manitoba, to the northeast by Nunavut, and on the south by the U.S. states of Montana and North Dak ...

, Canada. It is 5 km (3 mi) in diameter and the age is estimated to be less than 250 million years (

Triassic The Triassic ( ) is a geologic period and system (stratigraphy), system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago (Year#Abbreviations yr and ya, Mya), to the beginning of the Jurassic Period 201.36 ...

or later). The crater contains a classic

crater lake Crater Lake ( Klamath: ''Giiwas'') is a volcanic crater lake in south-central Oregon in the western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fill ...

with an island (Calder Island) formed by the central uplift. It is the smallest known crater in Canada with an uplift structure. The larger

Deep Bay crater Deep Bay is a bay near the south-western tip of Reindeer Lake in Saskatchewan, Canada. The bay is strikingly circular and very deep (220 m) in an otherwise irregular and shallow lake. It is the deepest body of water in Saskatchewan. The bay was f ...

, of

Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...

age, is approximately 90 km east of Gow crater.

References

External links

Aerial Exploration of the Gow impact crater
Impact craters of Saskatchewan Triassic impact craters Impact crater lakes Division No. 18, Saskatchewan {{triassic-stub