South Dakota Highway 79

Highway 79
Highway 79
	SD 79 highlighted in red
Route information
	Maintained by SDDOT
Length	209 mi (336 km)
Major junctions
South end	US 18 / US 385 at Maverick Junction
	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;

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.

Route description

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.

Major intersections

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
	Hermosa	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
	Piedmont	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
	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