The Four Roads Turlough (Irish: Turlach Thigh Srathra) Special Area of Conservation (or SAC) is a Natura 2000 site based at the village of Four Roads, Ireland, close to Roscommon town, in County Roscommon, Ireland.

It is situated approximately 2.5 km from the River Suck, in the townlands of Carroward, Cloghan and Cloonlaughnan.

451/2017- European Union Habitats (Four Roads Turlough Special Area of Conservation 001637) Regulations 2017.

Of the other turlough sites designated as SACS in Europe, 14 are in Germany, 8 are in Estonia, 3 are in Croatia and 4 are in Slovenia.

The NPWS site synopsis notes that it does not include permanent standing water, and has a predictable pattern of flooding.

[6] decrease Increases in water levels occurred between September 2017 and May 2018, and again between December 2018 and May 2019, with irregular peaks within those periods.

[6] According to the NPWS site synopsis, the flora at the east side of the turlough consist of predominantly species of grass, such as Creeping Bent (Agrostis stolonifera).

Bottle Sedge (Carex rostrata) and Bogbean (Menyanthes trifoliata) are to be found in some low-lying areas.

The River Suck has a specific population of Greenland White-fronted Goose, which frequently use the Four Roads SAC – according to the NPWS site synopsis, this can be up to 500 individuals.

"The National Parks and Wildlife Service (NPWS) has included the Four Roads Turlough site as a proposed Natural Heritage Area or pNHA.