In historical times, the Canadian Cascade Arc has been considerably less active than the American portion of the volcanic arc.

Changes in magma composition have also occurred in the American portion of the Cascade Arc.

A number of volcanic features in the Canadian Cascade Arc are protected by provincial parks.

Over the last 37 million years, the Cascade Arc has been erupting a chain of volcanoes along the Pacific Northwest.

The volcanoes of the Cascade Arc share some general characteristics, but each has its own unique geological traits and history.

The Garibaldi Volcanic Belt is the northern extension of the Cascade Arc.

However, volcanic activity along the Cascade Arc has been declining over the last few million years.

This rift zone might explain the massive amounts of basaltic lava in this part of the central Cascade Arc.

Of the entire Cascade Arc, the Garibaldi chain has the lowest rate of volcanic activity.

As a result, the risk of eruptions throughout this part of the Cascade Arc is minor.