The eerie, swirling vortex of Napa County’s Lake Berryessa, on display this year for the first time since 2019, could be visible for another week. Called the Morning Glory spillway, or “glory hole,” ...

Technically called the Morning Glory spillway, the drainage pipe has been used ... The fascinating water management design, known as a passive spillway, was last used in 2019 and 2017. Before that it ...