This process, called 'spillover,' makes the lake look like it has a giant hole in it. Water rushing into the mouth of this huge pipe makes it resemble a morning glory flower, which is where it ...

Some people say, 'That's frightening.'" The drain's actual name is no less suggestive: the Morning Glory Hole spillway. Californias “Glory Hole” has been turned back on after 6 years.

Lake Berryessa’s glory hole is back in action. That’s the Morning Glory Spillway, to be exact: a massive, swirling drain at Monticello Dam designed to prevent flooding when Lake Berryessa’s ...