Opal Cone

49°49′38.0″N 122°58′16.0″W / 49.827222°N 122.971111°W / 49.827222; -122.971111GeographyLocationGaribaldi Park, British Columbia, CanadaDistrictNew Westminster Land DistrictParent rangeGaribaldi RangesTopo mapNTS 92G15 Mamquam MountainGeologyAge of rockHoloceneMountain typeCinder coneVolcanic arc/beltCanadian Cascade ArcGaribaldi Volcanic BeltLast eruption9300 BP

Opal Cone is a cinder cone located on the southeast flank of Mount Garibaldi in the Coast Mountains of British Columbia, Canada. It is the source of a 15 km (9 mi) long broad dacite lava flow with prominent wrinkled ridges. The lava flow is unusually long for a silicic lava flow.

Opal Cone is a member of the Cascade Volcanoes, but it is located in the Garibaldi Ranges in the Coast Mountains and not in the Cascade Range proper.

See also

• List of volcanoes in Canada
• Volcanism of Canada
• Volcanism of Western Canada
• Cascade Volcanoes
• Garibaldi Volcanic Belt
• Garibaldi Lake volcanic field

External links

• Opal Cone in the Canadian Mountain Encyclopedia
• Hiking Opal Cone - Online guide for hiking to the summit

References

• "Opal Cone". BC Geographical Names.
• Catalogue of Canadian volcanoes:Opal Cone

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