# Volcanes de lodo, Buzau, Rumanía, 2016-05-29, DD 43

- By: Diego Delso
- Date: 2016-05-29
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Volcanes_de_lodo,_Buzau,_Ruman%C3%ADa,_2016-05-29,_DD_43.jpg)
- Rights: [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/2/2f/Volcanes_de_lodo%2C_Buzau%2C_Ruman%C3%ADa%2C_2016-05-29%2C_DD_43.jpg/1920px-Volcanes_de_lodo%2C_Buzau%2C_Ruman%C3%ADa%2C_2016-05-29%2C_DD_43.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

The Berca Mud Volcanoes are a geological and botanical reservation located close to Berca in Buzău County, Romania. The phenomenon is caused due to gases that erupt from 3,000 metres (9,800 ft) deep towards the surface, through the underground layers of clay and water, they push up underground salty water and mud, so that they overflow through the mouths of the volcanoes, while the gas emerges as bubbles. When the mud arrives at the surface, it dries off, changing the landscape in ways like you can see here.