Sefidrud

Sefidrud, also known as the Shahrokh River, is a major river in northern Iran. It originates from the Alborz Mountains and flows in a general southeast direction, eventually emptying into the Caspian Sea. The river is approximately 82 kilometers long.

Sefidrud is an important source of water for the surrounding agricultural regions. Its waters support a variety of crops, including wheat, barley, and pomegranates. The river's course is largely artificial, with several canals and dams constructed to regulate its flow and provide irrigation for the surrounding lands.

The river's name, Sefidrud, is derived from the Persian words "sefid" meaning white, and "rud" meaning river. This name likely refers to the river's milky or calcified appearance, although the exact reason for its coloration is unclear. Sefidrud has cultural and historical significance in the region, with several ancient sites and archaeological finds along its course.

Despite its importance for agriculture and the local ecosystem, Sefidrud has faced pollution and environmental degradation due to human activities. Studies have identified high levels of pollution in the river's water, including chemicals and heavy metals. Efforts have been made to improve water quality, but further conservation measures are needed to protect the river's ecosystem. Sefidrud remains a vital component of the local environment and economy, with ongoing efforts to balance development and conservation in the surrounding region.