Sulfuric rivers in Romania are natural phenomena where the water contains high concentrations of sulfur, often due to volcanic activity or mineral-rich deposits. These rivers are particularly associated with the country's rich geological features, especially in areas with significant geothermal and sulfuric mineral deposits. Some well-known locations in Romania where sulfuric waters can be found include:


### 1. **The Sulfur Springs of the Buzău County**

  - Buzău County, located in southeastern Romania, is known for its sulfuric springs and mineral-rich waters. The area around the town of **Berca** features sulfuric waters that flow through various streams and rivers. These sulfur springs are often used in traditional medicine for their therapeutic properties.

  - The **Berca Mud Volcanoes** are also nearby, and while these volcanic formations are not rivers, the sulfuric content of the region contributes to the sulfurous environment. The mud volcanoes release gases and minerals, adding to the sulfuric landscape.


### 2. **The Tătaru River** 

  - Near the **Tătaru** village in the Buzău region, there are small streams with sulfuric water. The sulfur in the water is often used for local therapeutic baths, as the water has believed to have medicinal qualities for skin diseases and other ailments.


### 3. **The Olt River – Sulfuric Springs**

  - In certain sections of the **Olt River**, especially near the town of **Călimănești**, sulfuric springs merge with the river, contributing to its mineral content. This area is also known for its spas that attract people seeking to benefit from the healing properties of sulfuric mineral waters.


These sulfuric rivers and springs are often seen as natural health resources, and several spas in Romania take advantage of their mineral-rich waters to treat a variety of ailments, particularly skin and respiratory conditions.


If you're specifically interested in any particular sulfuric river or region, feel free to provide more details!