Guru Gobind Sagar Lake:

Guru Gobind Sagar Lake is an example of a man-made lake located in the Indian state of Himachal Pradesh. It is formed by the Bhakra Dam, which is one of the highest gravity dams in the world. The lake was created as a reservoir to store water for irrigation, hydroelectric power generation, and domestic use.

1. Formation:
- Guru Gobind Sagar Lake was formed by the construction of the Bhakra Dam on the Sutlej River.
- The dam was built between 1955 and 1963, and the lake began to fill up with water as the dam was completed.
- The construction of the dam involved diverting the flow of the river and creating a large reservoir behind it, which eventually formed the lake.

2. Purpose:
- The main purpose of creating Guru Gobind Sagar Lake was to provide water for irrigation in the surrounding areas.
- The stored water is used to irrigate agricultural lands, which has significantly improved the agricultural productivity of the region.
- The lake also serves as a source of water for drinking and domestic use in the nearby towns and villages.
- Additionally, the Bhakra Dam generates hydroelectric power, contributing to the overall energy requirements of the region.

3. Size and Features:
- Guru Gobind Sagar Lake has a surface area of about 168 square kilometers and a maximum depth of approximately 90 meters.
- It stretches across the Bilaspur, Una, and Kangra districts of Himachal Pradesh.
- The lake is surrounded by beautiful hills and provides a scenic environment for tourists and locals alike.

4. Importance:
- Guru Gobind Sagar Lake is of immense importance to the local economy and livelihoods of people in the region.
- The availability of water for irrigation has transformed the agricultural practices and improved the living standards of farmers.
- The hydroelectric power generated by the Bhakra Dam is a significant source of revenue and contributes to the overall development of the area.

In conclusion, Guru Gobind Sagar Lake is a prime example of a man-made lake created for multiple purposes, including irrigation, hydroelectric power generation, and domestic water supply. It has played a crucial role in the development and prosperity of the surrounding regions in Himachal Pradesh.