Cascadia Day
Type: Hybrid
Category: General
Solution Areas: Adaptation & Resilience
Regions: State Wide
May 18, 2026 12:00 am – 11:00 pm
Cost: Free
Online platform and event link coming soon
About the event
Cascadia Day is a day chosen to join together to celebrate, educate, and raise awareness of Cascadia and bioregionalism. Celebrate by meeting your neighbors, discussing and planning positively enjoying the Pacific Northwest NOW. Join fellow Cascadians, cultivating Cascadia as a resilient and inclusive place for all.
Why May 18th?
May 18th is the anniversary of the Mt. St. Helens eruption, chosen by former Seattle University professor David McCloskey as a day to represent Cascadia because of the visceral reminder of the dynamism of our region. We live under massive forces that shape our world, in a region defined through its geography, geology and topography – and we are all a part of these processes.
This is Cascadia, and we are Cascadian.
Share your Cascadia Day fun using #CascadiaDay
