Georgia State Route 42
SR 42; mainline in red,, spurs in blue | ||||
| Route information | ||||
| Maintained by GDOT | ||||
| Length | 115.3 mi (185.6 km) | |||
| Major junctions | ||||
| South end | SR 49 / SR 540 in Byron | |||
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| North end | SR 13 south of Brookhaven | |||
| Location | ||||
| Country | United States | |||
| State | Georgia | |||
| Counties | Peach, Crawford, Monroe, Butts, Henry, Clayton, DeKalb | |||
| Highway system | ||||
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State Route 42 (SR 42) is a 115.3-mile-long (185.6 km) state highway that runs southeast-to-northwest through portions of Peach, Crawford, Monroe, Butts, Henry, Clayton, and DeKalb counties in the central and north-central parts of the U.S. state of Georgia. The route connects Byron with the Atlanta metropolitan area, via Forsyth, McDonough, and Forest Park.