Lake Mackenzie is located in Briscoe County, Texas, 12 miles northwest of Silverton and 27 miles east of Tulia. Operated by the Mackenzie Municipal Water Authority, the lake was created to supply water to member cities of Floydada, Lockney, Silverton, and Tulia.  It also offers many recreational activities for the communities in the surrounding area. ​ We have a dedicated staff that hopes you share in our sentiment that.