Sukhna Lake is a rainfed, artificial reservoir that plays a crucial role in the region's microclimate.
* **Creation**: It was created in 1958 by damming the Sukhna Choe, a seasonal stream flowing down from the Shivalik Hills. * **Wetland Status**: Sukhna Lake was declared a protected national wetland by the Government of India due to its rich biodiversity. * **Siltation Management**: The lake requires periodic desilting to maintain its water levels, which is historically managed by dredging and voluntary community labor (*Shramdaan*).
