Aaron Bolton

Montana has one of the country's lowest coronavirus infection rates and is welcoming tourists back again. Earlier this month, it dropped a two-week quarantine requirement for out-of-state visitors put in place in March. But not everyone is on board with the decision.

Something odd was bubbling beneath the surface of northwest Montana's Flathead Lake this summer. It wasn't lake monsters, but submarines. The subs' pilots were there to help cash-strapped researchers explore the depths of Flathead Lake for free.

It can be hard for research divers to see what's at the bottom of deep bodies of water like Flathead Lake without special equipment and experience. So, having a couple of submarines around this summer was helpful to the University of Montana's Flathead Lake Biological Research Station.