LAKE BERRYESSA (KPIX) – Weeks after the last major winter storm, Lake Berryessa’s ‘Glory Hole’ vertical spillway is still going strong.

It has been nearly a decade since the lake level has risen high enough to send water rushing into the vertical spillway.

Lake Berryessa, a reservoir about two hours north of San Francisco, is formed by the Monticello Dam and features an open bell-mouth spillway, 72 feet wide with a vertical drop more than 200 feet deep.

When the lake fills up, excess water pours down the pipe and out the base of the dam.

It looks like a bathtub drain has opened up in the lake.