The channels tend to cluster in certain regions on the Martian surface, often associated with volcanic provinces, and the list reflects this.

These eruptions, from 251 to 250 million years ago, produced the Siberian Traps, a huge volcanic province in Siberia.

This volcanic province is among the northernmost volcanism on Earth.

"Hotspots" is the name given to volcanic provinces postulated to be formed by mantle plumes.

This amount is on par for some of the largest non-explosive volcanic provinces (see World's largest eruptions).

It is the most recently defined volcanic province in the Western Cordillera.

It is one of the largest bimodal volcanic provinces in world, ranging from basalts to rhyolites.

The north east volcanic province at the east end of the Pyrenees, dates from 14 Ma to 11,000 years ago.