(NBC News) Flash flooding has left at least three people dead and hundreds stranded in the Colorado mountains.
Flood-waters washed out roads and bridges and forced schools and businesses to close Thursday.
As more rain continues to fall rescuers are working to assess the damage and reach those still stranded by the flood-waters.
Hours of heavy rains triggered overnight flash floods that swept through the Boulder area.
"This is the most rain I've ever seen while living here that's for sure," said one Boulder resident.
"I've lived here 26 years and I've never seen anything close to this," said another.
-- Leanne Gregg, NBC News, reports