# Omineca Arc

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Volcanic arc terrane in western North America

The Omineca and other terranes of western Canada

The **Omineca Arc** was a [Jurassic](/source/Jurassic)-to-[Cretaceous](/source/Cretaceous) [volcanic arc](/source/Volcanic_arc) of the Omineca Belt in western [North America](/source/North_America), extending from [Alaska](/source/Alaska) through [Yukon](/source/Yukon) and [British Columbia](/source/British_Columbia) to [Washington](/source/Washington_(U.S._state)). The Omineca is bounded by the [Foreland Belt](/source/Foreland_Belt) to the east and the [Intermontane Belt](/source/Intermontane_Belt) to the west. It is named after the [Omineca Mountains](/source/Omineca_Mountains) of north-central British Columbia.[1]

## See also

- [Volcanology of Canada](/source/Volcanology_of_Canada) – Volcanic activity in CanadaPages displaying short descriptions of redirect targets

- [Volcanology of Northern Canada](/source/Volcanology_of_Northern_Canada) – History of volcanic activity in Northern CanadaPages displaying short descriptions of redirect targets

- [Volcanology of Western Canada](/source/Volcanology_of_Western_Canada)

## References

1. **[^](#cite_ref-1)** ["The Omineca Episode (180–115 Million Years Ago)"](http://www.washington.edu/burkemuseum/geo_history_wa/The%20Omineca%20Episode.htm). *Burke Museum of Natural History and Culture, University of Washington*. Retrieved 21 December 2025.

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