Twin Buttes Reservoir is divided into seven zones for public hunting purposes. The above map has been available on the City of San Angelo's website for quite some time. The city recently added a new map, pictured below.
Hunting is not allowed in the park area on the north shore of the North Pool or in Zone 7. Dove hunters may be out in force Labor Day weekend. I expect many fishermen and recreational users to celebrate the holiday weekend at Twin Buttes. Everybody enjoy, but be safe!