South Dakota Highway 79

Highway 79
SD 79 highlighted in red
Route information
Maintained by SDDOT
Length	209 mi[1] (336 km)
Major junctions
South end	US 18 / US 385 at Maverick Junction
Major intersections	I-90 / US 14 from Rapid City to Sturgis I-190 / US 16 in Rapid City US 212 in Newell SD 20 in Reva
North end	ND 22 at the North Dakota state line, south of Reeder, ND
Location
Country	United States
State	South Dakota
Counties	Fall River Custer Pennington Meade Butte Harding
Highway system
South Dakota State Trunk Highway System Interstate US State
← SD 75 → US 81

South Dakota Highway 79 (SD 79) is a 209-mile (336 km) state highway in western South Dakota, United States, that runs from Maverick Junction near the Black Hills National Forest to the North Dakota state line.

SD 79's southern terminus is at Maverick Junction near Hot Springs, where it meets US 18 and US 385. SD 79 runs east of the Black Hills to Rapid City, where it joins US Route 16 Truck Bypass around the east side of Rapid City up to Interstate 90. The road continues north and runs concurrently with US 14 and Interstate 90 westbound toward Sturgis. Leaving Sturgis, SD 79 leads to Bear Butte State Park and briefly runs concurrently with U.S. Route 212 south of Newell. Near North Dakota, the highway passes through the South Dakota portion of Custer National Forest. SD 79 then joins SD 20 for a short concurrent run, and finally turns northward until it reaches North Dakota.

County	Location	mi	km	Exit	Destinations	Notes
Fall River	Maverick Junction	0.0	0.0		US 18 / US 385 – Hot Springs, Oelrichs, Edgemont	Southern terminus
Custer	​	32.0	51.5		SD 36 west – Custer, Custer State Park, Crazy Horse, Mount Rushmore
	Hermosa	32.8	52.8		SD 40 west – Keystone	Southern end of SD 40 concurrency
		33.0	53.1		SD 40 east – Hermosa	Northern end of SD 40 concurrency
Pennington	Rapid City	50.4	81.1	—	US 16 Truck west	Southern end of US 16 Truck concurrency; single point urban interchange (SPUI)
		53.2	85.6	—	SD 44 – Rapid City
		56.0	90.1	61	I-90 east / US 14 east / US 16 Truck ends – Sioux Falls	Northern end of US 16 Truck concurrency; southern end of I-90/US 14 concurrency; SPUI
		57.3	92.2	60	I-90 BL west (North Street) – Rapid City	SPUI
		58.6	94.3	59	La Crosse Street – Rapid City
		59.5	95.8	58	Haines Avenue – Rapid City	SPUI
		60.1	96.7	57	I-190 south / US 16 west – Rapid City, Mount Rushmore, Black Hills National Forest	Trumpet interchange; I-190 exits 1A–B
		62.2	100.1	55	Deadwood Avenue – Rapid City
Meade	Black Hawk	65.4	105.3	52	I-90 BL east (Peaceful Pines Road) – Black Hawk, Rapid City
	Summerset	69.4	111.7	48	Stagebarn Canyon Road – Summerset
	Piedmont	71.7	115.4	46	Elk Creek Road – Piedmont, Summerset
		73.2	117.8	44	Bethlehem Road – Piedmont
	Tilford	77.6	124.9	40	Tilford Road, Bethlehem Road – Tilford
	​	80.8	130.0	37	Pleasant Valley Road
	​	83.0	133.6	34	Black Hills National Cemetery
	Sturgis	85.4	137.4	32	I-90 BL west (Junction Avenue) – Sturgis
		87.5	140.8	30	I-90 west / US 14 west / I-90 BL begins / US 14A west / SD 34 west – Sturgis, Deadwood, Lead, Gillette	Northern end of I-90/US 14 concurrency; southern end of SD 34 concurrency
	​	92.4	148.7		SD 34 east – Union Center	Northern end of SD 34 concurrency
Butte	​	111.2	179.0		US 212 west – Belle Fourche	Southern end of US 212 concurrency
	Newell	114.2	183.8		US 212 east – Mud Butte, Faith	Northern end of US 212 concurrency
	​	131.6	211.8		SD 168 to US 85
Harding	​	180.5	290.5		SD 20 west – Buffalo	Southern end of SD 20 concurrency
	​	184.9	297.6		SD 20 east – Prairie City, Bison	Northern end of SD 20 concurrency
	​	213.7	343.9		ND 22 north – Reeder	Northern terminus; continuation into North Dakota
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• List of state highways in South Dakota

Media related to South Dakota Highway 79 at Wikimedia Commons