Drives Texas Austin, San Antonio and the Hill Country
US-377: Junction to Rocksprings
US 377, Del Rio Road · Junction → Rocksprings
The drive
US 377 between Junction and Rocksprings is a quiet two-lane highway up the South Llano River. From Junction, where it meets I-10 and US 83, the road heads southwest with the river alongside, past Park Road 73, which leads to South Llano River State Park and the Walter Buck Wildlife Management Area.
It crosses into Edwards County near the tiny community of Telegraph, and about 20 miles short of Rocksprings it leaves the headwaters of the South Llano behind and climbs onto the Edwards Plateau. Rocksprings, the Edwards County seat, is where US 377 meets Highway 55 and where Highway 41 begins, the road that crosses the top of the Twisted Sisters loop.
Along the way
- Junction
- Rocksprings
Good to know
- South Llano River State Park, off Park Road 73, charges a daily entrance fee.
- From Oct. 1 to March 31 the park's day-use area is open only 10 a.m. to 3 p.m., to protect one of the largest turkey roosts in Central Texas.
Open all year, weather permitting. Roads close for snow, fire, storms and repairs: before you set off, check TxDOT DriveTexas: road conditions.
Questions about this drive
How long does US 377 from Junction to Rocksprings take?
US 377 from Junction to Rocksprings is 46.3 miles and takes about 50 minutes.
Does US 377 follow the South Llano River?
Yes: the South Llano River runs beside US 377 from its headwaters, about 20 miles north of Rocksprings, down into Junction.
How do you get to South Llano River State Park from US 377?
Turn off US 377 onto Park Road 73 near Junction to reach South Llano River State Park.
What you get in the app
Free on iPhone and Android. CarPlay and Android Auto come with Apex.
More drives near here
Distance, time, elevation, curves and intensity are from Carve's route. Checked 2026-10-28.