It’s a circular spillway that drains the lake when the water level reaches 440 feet. A view of the Glory Hole spillway at the Monticello dam in Lake Berryessa, Calif., on Tuesday, March 18, 2025.

Lake Berryessa is 3.5' OVER the Glory Hole Spillway 4K HD Drone Report - Lake Berryessa News 2-21-17 by Evan K on YouTube "We had 62 million views around the world," remembered Kilkus.

As Lake Berryessa News reports, the hole first spilled on February 4 and saw the most action on – of all days – Valentine’s Day, when water levels rose to 135.02 meters (442.97 feet).

Seeing the glory hole experience spillover is a rare treat. Most of the time, Lake Berryessa's water level stays below 440 feet, and this hulking concrete pipe juts out over the lakes surface.

A circular drain at Lake Berryessa in Napa County, known as the Morning Glory Spillway, has been active, drawing spectators seeking to get a glimpse of the rare funneling whirlpool.

A rare sight has returned to California's Lake Berryessa for the first time since 2019. The famous Glory Hole Spillway is in full flow. This massive circular drain at Monticello Dam funnels excess ...

Lake Berryessa’s famed “Glory Hole” spillway, located about 80 miles north of San Francisco, experienced its first spillover in years after water levels on the man-made reservoir exceeded ...

The hole at Lake Berryessa is a unique drainage feature that is the overflow valve for that reservoir. Share Updated: 6:53 PM CST Feb 7, 2025 Infinite Scroll Enabled ...

NAPA COUNTY, Calif. — The spillway at Lake Berryessa, known as the “Morning Glory Hole,” was activated this month for the first time in six years, according to Solano County Water Agency.