I know the answer to this one.

 Today's question on my page-a-day Trivia calendar is: "The Mount St. Helens volcano famously erupted in 1980.  Where is Mount St. Helens located?"  I knew the answer to this one right away.  In 1980 my west coast brother and his family were living in Washington State which is where Mount St. Helen's is located.  They didn't live near the volcano but the ash spread for miles.  In his excitement (this was a rare occurrence after all) my brother spread some newspaper on the front lawn, thinking he might accumulate a little ash to keep as a memento.  By the next morning there was something like a foot of ash all over his neighborhood.  I received a little bottle of MSH ash for Christmas that year.  Since my family is big on collecting rocks and stuff, I was thrilled.  But there was more to the story.  My father and step-mom had decided to fly from Indiana to Washington to visit my brother and his wife and their two young children.  As I recall, they arrived before the eruption but were stuck for several days after because planes couldn't fly.  Too much ash in the air.  It was a memorable time.  I don't think my dad ever flew anywhere again.