Murvaul Lake is a reservoir located in Panola County, Texas, near the town of Gary. It was created in 1958 as a result of the construction of a dam on the Murvaul Creek. The lake is fed by several small creeks and is part of the Cypress Bayou watershed. The hydrology of the lake is closely monitored by the Sabine River Authority, which manages the lake and surrounding lands.

The lake is primarily used for recreational purposes, including fishing, boating, and camping. It is stocked with a variety of fish species, including largemouth bass, catfish, crappie, and sunfish. The lake also provides water for irrigation in the surrounding agricultural areas.

During periods of heavy rainfall, the lake can experience significant surface flow, which can lead to flooding in downstream areas. The lake also receives some snowpack runoff from nearby areas, which can contribute to its water levels.

Overall, Murvaul Lake is an important resource for both the local community and the surrounding region, providing water for irrigation and recreational opportunities for residents and visitors alike.