Due to system upgrades, the Dallas County District and County Clerk’s Offices will be unable to accept eFilings after 1:30PM on Friday, May 2, 2025 until Monday, May 5, 2025 at 8:00AM. If you have an emergency filing, please contact our offices directly for assistance.

Palmetto-Alligator Slough Preserve

Palmetto-Alligator Slough Preserve

Unincorporated Dallas County, 265 Acres

Preserve Overview

Palmetto-Alligator Slough Preserve is a 264.5 acre preserve located in the unincorporated area of Dallas County near Seagoville. 

Preserve Features

The preserve is not currently open to the public and has no amenities. The preserve contains four ponds, three wetlands, and Parson's Slough. The preserve is also home to several stands of dwarf palmetto (Sabal minor), which is not commonly seen in North Texas. 

Preserve History

Palmetto-Alligator Slough Preserve was acquired in 1993. The wetlands at the preserve have been named for Mary Phinney who served as the Dallas County Open Space Administrator from 1988-2010.

Palmetto-Alligator Slough PreservePalmetto-Alligator Slough Preserve

Preserve Rules and Maintenance

This preserve is closed to the public. Please do not enter the preserve. 

Dallas County is responsible for maintaining this Preserve. Please call the Dallas County Parks and Open Space Program at (214) 653-6653 to report any maintenance issues.