Burning Man attendees told to shelter in place.

CNN: Burning Man attendees told to shelter, conserve food and water.

Tens of thousands of people attending the Burning Man festival in the Nevada desert are being told to conserve food, water and fuel as they shelter in place in the Black Rock Desert after a heavy rainstorm pummeled the area, festival organizers said.

Attendees were surrounded by thick, ankle-deep mud and organizers halted vehicles from traveling in or out of the festival after heavy rains started saturating the area Friday evening.

Hannah Burhorn, a first-time attendee at the festival, told CNN in a phone interview Saturday the desert sand has turned into thick clay and puddles and mud are everywhere. People are wrapping trash bags and Ziploc bags around their shoes to avoid getting stuck, while others are walking around barefoot.

ABC News: Entrance to Burning Man in Nevada closed due to flooding. Festivalgoers urged to shelter in place.

The entrance will be closed for the remainder of the event, which began on Aug. 27 and was scheduled to end on Monday, according to the U.S. Bureau of Land Management, which oversees the Black Rock Desert where the festival is being held.

More than one-half inch of rain is believed to have fallen on Friday at the festival site, located about 110 miles (177 kilometers) north of Reno, the National Weather Service in Reno said. At least another quarter of an inch of rain is expected Sunday.

Organizers urged festivalgoers to conserve their food, water and fuel.

Officials haven’t yet said when the entrance was expected to be opened again.

Conserve fuel? Aren't these the granola-headed, vegan, no fossil-fuels, solar/wind power, anti-establishment crowd?

Oh, not the Burning Man Festival! How Sad! Let's hope they're not trapped there forever 'n ever!