Why Does It Smell Like Yellowstone Near Downtown Twin Falls?

Twin Falls is known for having some random weird smells that come and go. The sugar beet factory, dairy air, smoke from wildfires. But, there is a new smell that has stuck around for over a week now near downtown Twin Falls.

There is a definite sulfur/Yellowstone geyser smell around the Washington and South Park intersection. That intersection has been know to have the smell of deep fried food oil but the sulfur smell is a new addition and we don't know where it is coming from. Do you?