East
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Interstate 90 enters Jackson County ahead of Big Foot Creek.
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Passing south of Ackerman Hill, Interstate 90 advances southeast one mile to the diamond interchange at Exit 127.
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Exit 127 serves ranch land and the Minuteman Missile National Historic Site (Minuteman Missile Launch Control Facility Delta-01).
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Continuing southeast from Exit 127, Interstate 90 crosses Big Foot Hill.
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SD 240 returns to Interstate 90 from Badlands National Park northeast of Interior.
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Millard Ridge rises from within Badlands National Park along the southern horizon.
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SD 240 crosses Cedar Pass south to the Ben Reifel Visitor Center within Badlands National Park. SD 377 branches 2.17 miles southwest from nearby to SD 44 within the town of Interior.
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Interstate 90 resumes an easterly course beyond Cactus Flats after dropping 10.5 miles south in latitude.
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SD 73 south converges with Interstate 90 at Exit 143 in 11.2 miles. The city of Chamberlain in Brule County follows in 132 miles.
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SD 73 south converges with Interstate 90 at Exit 143 in 11.2 miles. The city of Chamberlain in Brule County follows in 132 miles.
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A scenic overlook lines the westbound roadway along this stretch.
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SD 73 stems 39.5 miles north from Interstate 90 at Exit 143 to the Haakon County seat of Philip and SD 34 at Billsburg.
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The diamond interchange (Exit 143) with SD 73 north is located at Sevenmile Corner.
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East 
South
SD 73 south combines with Interstate 90 east for 6.9 miles to Kadoka.
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Business Loop I-90 accompanies SD 73 south from the diamond interchange at Exit 150 to SD 248 (old U.S. 16) east into Kadoka.
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SD 73 resumes a southward course from Interstate 90, 45.77 miles to U.S. 18 east of Martin.
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Business Loop I-90 at Kadoka runs 2.7 miles south from I-90 between Exit 150 and Exit 152.
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East
Business Loop I-90 returns to I-90 north from SD 248 (old U.S. 16) along South Creek Road.
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South Creek Road is inventoried as SD 248P, 0.38 miles north from SD 248.
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SD 63 north ties into Interstate 90 at a diamond interchange (Exit 163) just outside the rural town of Belvidere.
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SD 63 travels 22.01 miles south from the diamond interchange at Exit 163 to Pine Ridge Indian Reservation and SD 44 by Corn Creek Lake.
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SD 63 lines Main Street south into the Belvidere street grid. SD 248 parallels I-90 a third of a mile to the south.
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East 
North
The third rest area along Interstate 90 east in South Dakota follows Belvidere by mile marker 165.
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SD 63 north overlaps with Interstate 90 east 7.2 miles to the succeeding exit.
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SD 63 continues 13.57 miles north from I-90 and adjacent SD 248 to U.S. 14 at Midland.
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SD 63 extends north across the state to become Nebraska Highway 6 beyond McLaughlin.
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East
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Stamford Road meets Interstate 90 north of SD 248 at a ranch exit.
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Crossing the Jones County line, eastbound Interstate 90 enters Central Time Zone.
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Old U.S. 16 shifts a half mile south of this linear section of Interstate 90.
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The ranch exit at Exit 177 connects with an unpaved road a half mile north of SD 248.
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The ensuing exit along I-90 eastbound is for the rural community of Okaton.
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SD 248 angles southeast from Okaton to a point a half mile south of Interstate 90.
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Becoming Business Loop I-90 east into Murdo, SD 248 converges with Interstate 90 at Exit 191.
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Business Loop I-90 through Murdo runs 1.8 miles east along 5th Street and south along Kennedy Avenue.
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The remainder of SR 248 east from Murdo stays north of Interstate 90.
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U.S. 83 travels 42.20 miles south to the Mellette County seat of White River and U.S. 18 west of Mission.
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U.S. 83 south joins Murdo with Valentine, Nebraska. Business Loop I-90 follows old U.S. 83 north from Exit 192 to 5th Street (SD 248).
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East 
South
Northbound U.S. 81 joins Interstate 90 east for 20.1 miles between Murdo and Vivian.
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County Road N13 links I-90/U.S. 81 at Exit 201 with SD 248 at the nearby town of Draper.
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Photo Credits:
08/12/16 by AARoads
Page Updated 02-24-2023.