Idaho Falls, Idaho Area

The Idaho Falls, ID area includes the cities of Ashton, Idaho Falls, Pocatello, St. Anthony, Idaho USA

Side trip to Craters of the Moon National Monument

Jump to “Great Western Circle” tour starting point Exit 306.

Photo along highway 20

On our “Great Western Circle” Tour we traveled on Interstate 15 from Interstate 80 in Salt Lake City and went north to the Utah / Idaho State Line. We continued up Interstate 15, in Idaho, to Idaho Falls. Now we travel northeast from Idaho Falls on US Highway 20, on this page, on our way to Yellowstone National Park.

(Because all of our area pages run from the north to the south, this page begins at the bottom and works up if you are traveling our “Great Western Circle” Tour. Jump to Exit 306.

Highway 20 continues east toward Yellowstone on our West Yellowstone, Montana Area Page

US Highway 20 southbound

Milepost 407 – Idaho / Montana State Line

Milepost 502 – Henrys Lake State Park – Fifteen miles for Yellowstone Park with 45 campsites 26 with water & electricity. They are on a reservation system. It is often easier to get a campsite here and take day trips into the park. Their web site is http://www.idahoparks.org/parks/henrys.html

Milepost 392 – Mack’s Inn – There is gas, food, and cabins here

Milepost 382 – Island Park – There is gas, food, and lodging here

Milepost 381 – Highland Park population 320

Milepost 379 – Mesa Falls Scenic Lookout

Milepost 378 – Harriman State Park Entrance – Known as Railroad Ranch. This was a private retreat of the Harriman’s who owned the Union Pacific Railroad. Today the park is part of a 16,000 acre wild life reserve. There is no camping here. The web site: http://www.idahoparks.org/parks/harriman.html

Photo of a resort Milepost 376 – Historical Marker – Caldera Lookout / Henry’s Fork Lodge

Milepost 375 – Riverside Campground

Milepost 368 – Volcanic Caldera Geological Area

Milepost 361 – There is gas food and lodging here

Milepost 360 – Ashton / Targhee National Forest

Milepost 353 - this is the beginning / end of the 4 lane highway (we list exits on 4 lane and Mileposts on two lane highways).

Exit 352 – Chester –

City of St. Anthony – Population 3010 and the elevation is 4971 feet above sea level. Their Chamber as a web page: http://www.stanthonychamber.com/. They have a visitor center at 114 N. Bridge St. St. Anthony, ID 83445, phone 208-624-4870. The visitor center is open May 21 to Sept. 15. The St. Anthony Sand Dunes lie east of the city and are 10,000 acres of quartz sand dunes that range from 10 to 4,000 feet high and are a Mecca for ATV’s.

Exit 345 – St. Anthony / St. Anthony Sand Dunes – There is gas, food, and lodging at this exit

St. Anthony countryside Exit 343 – South St. Anthony– There is food at this exit

Milepost 341 – Freemont County Line

Exit 338 – Sugar City –

The City of Rexburg – Population 17,257 The town was founded in 1883 by Thomas E. Ricks who also founded Ricks College that is located here. The Rexburg Chamber has a web site: http://www.rexcc.com/ The Teton Flood Museum is located at 51 N. Center Street

Exit 336 – North Rexburg – There is fuel 2 mi. east of exit

Exit 333 – Rexburg – HOSPITAL – There is gas food, and lodging at this exit

Exit 331 – South Rexburg

Exit 328 – Thornton / Rexburg –

Exit 326 – Madison County Line – Yellowstone Bear World park and RV parks are located here

Exit 325 – Lorenzo – There are no facilities at this exit

Exit 322 – North Rigby Business Loop / Jefferson Recreation Area – There is lodging, fuel, and food at this exit.

Exit 320 – Rigby – The Television & Pioneer Museum, gas, food, and lodging is located at this exit.

Exit 313 – Ucon – There are no facilities at this exit

The City of Idaho Falls, ID – The Chamber of Commerce has a web site, http://www.idahofallschamber.com/

Exit 306 – Interstate-15 Exit 119 in Idaho Falls

The “Great Western Circle” Tour exits (enters) I-15 here to continue north on US-20 (this page) to Yellowstone

The falls at Idaho Falls If you are taking our “Great Western Circle” tour go up from here.

Milepost 263 – Junction with US-26

Milepost 247 – Arco

Milepost 228 – Craters of the Moon National Monument (It is 78 mi. from Idaho Falls to Craters of the Moon) The National Park Service has a web site for information on this lava field with its interesting natural features and lava tubes (caves); http://www.nps.gov/crom/. Fees: Vehicle $4.00, individual $2.00, campsite $10.00 / night/ first come – first served. There is a NPS visitor center here.

Milepost 0 of US Highway 20 – Oregon / Idaho State Line at Ontario, Oregon at the bridge over the snake river (US Highway 20 and Interstate 84 share the same roadway from here to Mountain Home, ID.

Utah Milepost 403 – Utah / Idaho State Line

This is the southern end of our US Highway 20 Idaho Falls area page.

Interstate 15 continues south of here on our Idaho Falls area page.

Idah1020.htm