Idaho State Highway 87

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State Highway 87

SH-87 highlighted in red
Route information
Maintained by ITD
Length9.143 mi[1] (14.714 km)
Major junctions
South end US 20 in Island Park
North end MT 87 at Montana state line
CountryUnited States
Highway system
  • Idaho State Highway System
I-86 US 89

State Highway 87 (SH-87) is a 9.133-mile (14.698 km) state highway in Fremont County, Idaho, United States, that connects U.S. Route 20 (US-20) in Island Park with Montana Highway 87 (MT 87) at the Montana state line.

Route description

SH-87 begins at a T intersection with US-20 in northern Island Park, just east of the Henrys Lake Airport. The highway proceeds northwest, traveling through rural area, before bending west and entering the small community of Island Park. The highway travels parallel to the northern shore of Henrys Lake for a short distance, before peeling off and proceeding northwest. The road continues northwest through rural area, before terminating at the southern terminus of MT 87 at the Idaho-Montana state line in Raynolds Pass on the Continental Divide.[2] MT 87 continues northward from the border through Missouri Flats to its northern terminus at a junction with U.S. Route 287.

Major intersections

The entire route is in Fremont County. [2]

Island Park0.0000.000
US 20 east – West Yellowstone, Bozeman

US 20 west – Ashton, Idaho Falls
Raynolds Pass9.14314.714Idaho–Montana state line on the Continental Divide

MT 87 north – Ennis
Continuation into Montana
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b "Milepost Log". Idaho Transportation Department. January 29, 2008. Archived from the original on December 13, 2012. Retrieved November 28, 2012 – via
  2. ^ a b Google (January 29, 2013). "Overview Map of Idaho State Highway 87" (Map). Google Maps. Google. Retrieved January 29, 2013.

External links

Media related to Idaho State Highway 87 at Wikimedia Commons