Business Loop I-90 - Hardin
Business Loop I-90 constitutes a 2.67 mile long route south and west from I-90/U.S. 87-212 into the city of Hardin. The loop overlaps with Montana Highway 47 for 1.27 miles south from Exit 495 along a combination of Crawford Avenue, 14th Street W and Center Avenue. MT 47 ends at the intersection of Center Avenue and 3rd Street. 3rd Street west from Center Avenue to Downtown Hardin is S-313, which is also Old U.S. 87/212.
Paralleling the BNSF Railroad, Business Loop I-90 follows 3rd Street E (Old U.S. 87/212) northeast back to Interstate 90 at Exit 497. Old U.S. 87/212 branches east from the business route along S-384 just prior to the exchange.
Historically Mitchell Avenue southwest from Crawford Avenue to S-313 (3rd Street) was the former alignment of MT 47.
East 
South
MT 47 runs south along the Hardin city line to the diamond interchange (Exit 495) along I-90/U.S. 87-212 where Business Loop I-90 east begins.
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Interstate 90 travels 45 miles west to Billings.
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Sheridan, Wyoming is 82 miles to the southeast from MT 47.
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S-313 follows the Bighorn River south from Hardin to Crow Country and Fort Smith. Crawford Avenue south to Mitchell Avenue is the truck bypass along the west side of Hardin.
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Business Loop I-90/MT 47 turn east onto 14th Street W for Center Avenue south to the Hardin city center.
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Crawford Avenue and Mitchell Avenue south to S-313 and Old Highway 87 is the former alignment of Montana Highway 47.
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Reassurance markers for Business Loop I-90 east and MT 47 south posted along 14th Street W.
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Business Loop I-90/MT 47 curve south from 14th Street W to overtake Center Avenue at 13th Street.
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Center Avenue south at 4th Street in the Hardin business district.
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MT 47 south ends at 3rd Street, where Business Loop I-90 turns east in Downtown Hardin.
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Despite signage alluding to 3rd Street leading to S-313, the secondary highway begins at Center Avenue and follows Old U.S. 87/212 west 0.77 miles to Mitchell Avenue.
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Center Avenue extends south from Business Loop I-90 (3rd Street) to the Bighorn County Fairgrounds.
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East
Business Loop I-90 confirming marker posted east between the end of MT 47 on Center Avenue and Cheyenne Avenue.
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Paralleling the BNSF Railroad, Business Loop I-90 (3rd Street) crosses a railroad spur at-grade beyond 4th Street E and this reassurance shield.
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S-384 begins along Old U.S. 87/212 east from Business Loop I-90.
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Business Loop I-90 east reconnects with I-90/U.S. 87-212 just north of S-384.
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I-90/U.S. 87-212 overlap another 13.2 miles south to Crow Agency, where U.S. 212 branches east toward Broadus.
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Interstate 90 leads 1.6 miles west back to MT 47.
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West
Business Loop I-90 commences west from I-90/U.S. 87-212 at a diamond interchange (Exit 497) with 3rd Street E and Sugar Factory Loop north.
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I-90/U.S. 87 head south from Hardin to Sheridan, Wyoming.
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The first reassurance marker for Business Loop I-90 appears just west of I-90/U.S. 87-212 along 3rd Street E. S-313 spurs 38.51 miles south from Hardin to Fort Smith.
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S-384 follows Old U.S. 87/212 southeast from Business Loop I-90 (3rd Street E) for 1.17 miles before crossing I-90/U.S. 87-212 northeast en route to Interstate 94 near Hysham.
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S-384 ends at Business Loop I-90 (3rd Street E), but this shield assembly alludes to an overlap west to S-313 in Hardin.
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Business Loop I-90 (3rd Street E) angles southwest into the city of Hardin at 4th Street E. The 1960 USGS Hardin Quadrangle maps show 4th Street E as the old alignment of U.S. 87/212 across Hardin instead of 3rd Street E.
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3rd Street E diverges from the adjacent BNSF Railway west at Railway Street and Cheyenne Avenue.
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3rd Street E advances one block west from Cheyenne Avenue to intersect the south end of MT 47 and north end of S-313 at Center Street.
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Business Loop I-90 combines with MT 47 north along Center Street while S-313 lines 3rd Street W west through Downtown Hardin 0.77 miles to Mitchell Avenue at Old Highway 87.
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West North
Business Loop I-90 and MT 47 are unmarked along Center Street leading north from 3rd Street and S-313.
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Business Loop I-90/MT 47 curve west from Center Avenue toward Crawford Avenue beyond forthcoming 13th Street.
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The shield for MT 47 north appears where Business Loop I-90 turns north onto Crawford Avenue from 14th Street W.
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Crawford Avenue leads into the diamond interchange with I-90/U.S. 87-212 at Exit 495 north just beyond Park Road.
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Interstate 90 heads south from Hardin to Crow Agency and Sheridan, Wyoming.
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Mile marker one for Montana Highway 47 is located at the eastbound entrance ramp for I-90/U.S. 87-212.
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I-90/U.S. 212 overlap with U.S. 87 west 43 miles to Lockwood. U.S. 212 continues with I-90 west another 18.7 miles to Laurel.
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Following the Bighorn River, MT 47 extends 28.65 miles north from I-90/Business Loop I-90 to Interstate 94 east of Custer.
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scenes
The Big Horn County Courthouse lies two blocks west of Business Loop I-90/MT 47 at Center Avenue along 3rd Street W.
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3rd Street (S-313) northbound ends along 3rd Street east at Business Loop I-90 and MT 47 (Center Avenue) in the Hardin city center.
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Photo Credits:
- ABRoads: 08/07/16
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Page Updated Monday January 26, 2026.