Question: Ellis, Idaho is located on what major north-south highway?
Context: The Sir Solomon Hochoy Highway is the major north-south highway on the island of Trinidad, in Trinidad and Tobago. Highway 11 is a major north-south highway in Saskatchewan, Canada that connects the province's three largest cities: Regina, Saskatoon and Prince Albert.  It is a structural pavement major arterial highway which is approximately 406 km long.  It is also known as the Louis Riel Trail (LRT) after the 19th century Métis leader.  It runs from Highway 6 north of Regina until Highway 2 south of Prince Albert.  Historically the southern portion between Regina and Saskatoon was Provincial Highway 11, and followed the Dominion Survey lines on the square, and the northern portion between Saskatoon and Prince Albert was Provincial Highway 12. Provincial Trunk Highway 10 (PTH 10) is a major north-south highway that runs in the western region of the province of Manitoba, Canada. Provincial Highway 1 () is a 464.693 km -long Taiwanese provincial highway that starts in the north of the country near Taipei Main Station and ends in the south at Fangshan, Pingtung County.  It intersects with Provincial Highway 9 and Provincial Highway 26.  Before the freeway system was built in Taiwan, this was the primary north-south highway for the island.  The highway connects most of the major cities in Taiwan.  In most parts of Taiwan, the road is known as The North-South Highway (縱貫公路). Sweden is a town in Monroe County, New York, United States.  The town is located on the west border of the county.  The Erie Canal passes through the northern part of the town and Route 19 is a major north-south highway.  The population was 14,175 at the 2010 census. Provincial Trunk Highway 83 (PTH 83) is a major north-south highway that runs in the far western region of the Canadian province of Manitoba.  It travels from the North Dakota border south of Melita, north through Virden, Birtle, Russell, and Roblin to its northern terminus with PTH 10 just east of Swan River.  Along with US 83, PTH 83 is part of the longest continuously numbered north-south highway in North America with a combined distance is 3,450 km . Ellis is an unincorporated community in Custer County, Idaho, United States.  Ellis is located on U.S. Route 93 15.5 mi northeast of Challis.  Ellis has a post office with ZIP code 83235. U.S. Route 93 (US 93) is a major north–south United States highway in the western United States.  The southern terminus is at US 60 in Wickenburg, Arizona.  The northern terminus is at the Canada–US border north of Eureka in Lincoln County, Montana, where the roadway continues into Roosville, British Columbia, as Highway 93.  Major cities that US 93 travels through include: Las Vegas, Nevada; Twin Falls, Idaho; Missoula, Montana; and Kalispell, Montana. International Parkway is a major north-south highway in the Dallas-Fort Worth Metroplex.  Its main purpose is to provide access to Dallas/Fort Worth International Airport (DFW) from the metropolitan area.  Part of the Parkway from its southern end at State Highway 183 (SH 183, Airport Freeway) and SH 360 to the south entry/Exit toll booths for DFW Airport is designated as State Highway Spur 97.  International Parkway is a de facto toll road, though the toll booths also handle parking fees for the airport. Mexican Federal Highway 187 ("Carretera Federal 187") is a Federal Highway of Mexico.  The highway travels from El Bellote, Centla Municipality, Tabasco in the north to Raudales Malpaso, Tecpatán Municipality, Chiapas in the south.  Mexican Federal Highway 187 is one of two major north-south highway corridors in Tabasco (the other being the Federal Highway 180 and 195 corridor).  The Federal Highway 187 route numbering continues as the Mexican Federal Highway 187D toll road from Raudales Malpaso south to Mexican Federal Highway 190 east of Ocozocoautla de Espinosa.
Answer: U.S. Route 93