Question: What town named after famous mining enginer Philip Deidesheimer can be found off the Montana State Highway 1 located in southwestern Montana?

Context paragraphs:
Montana Highway 48: Montana State Highway 48 (MT 48) is a short state maintained highway located in Deer Lodge County, in the southwestern region of the U.S. state of Montana.  The highway is 6.839 mi long, and connects MT 1 to Interstate 90, passing mainly through rural mining areas.  MT 48 was first designated in 1938, although portions of a highway existed in the location of MT 48 by at least 1924.

Texas State Highway 77: State Highway 77, or SH 77, is a numbered state highway in Texas, occupying the counties of Morris and Cass.  SH 77 is 46.815 mi long, and connects U.S. Highway 259 to the eastern state line.  It begins four miles (6 km) north of Omaha on US 259, and travels eastward to Naples, meeting U.S. Highway 67 and State Highway 338.  In Douglassville, SH 77 intersects State Highway 8.  After cutting across the south side of Atlanta, where it meets U.S. Highway 59 (Future Interstate 369), SH 77 cuts to the southeast, and crosses into the very northwest corner of Louisiana, becoming Louisiana Highway 1.  SH 77 was originally proposed in 1926 as a route from Douglasville to Naples, replacing SH 1B.  By 1933, SH 77 extended southeast to Louisiana, replacing a portion of SH 47.  It was originally planned to travel farther west to Commerce, but this plan was cancelled in 1941.  In 1966, SH 77 was extended west over FM 2880 from US 259 to US 67.

New Zealand State Highway 57: State Highway 57 is a New Zealand state highway, linking State Highway 1 north of Ohau to State Highway 3 east of Ashhurst, via Levin, Shannon, Massey University and the southern suburbs of Palmerston North.  The highway connects State Highway 1 traffic coming north from Wellington to the city of Palmerston North, and further to the Manawatu Gorge, allowing passage to the eastern side of the North Island and to the twin cities of Napier and Hastings.  The highway is classified by the NZTA as a national strategic road.

Texas State Highway 1: State Highway 1 (SH 1) was a Texas state highway that traveled across the U.S. state of Texas.  The highway traveled from Texarkana on the eastern border to El Paso on the western border, via Dallas and Fort Worth, Abilene, and Midland–Odessa.  SH 1 was approximately 842 mi long, and was one of the original 25 Texas state highways, which were designated on April 4, 1927.  In 1920, the entire length of the highway was designated as part of the Bankhead Highway, a transcontinental Auto trail.  In the Texas Department of Transportation's 1939 state highway renumbering, most of SH 1 was redesignated as U.S. Route 80, as well as U.S. Route 287, Texas State Highway 16, and others.  Most of these highways were replaced by Interstate 10, Interstate 20, and Interstate 30.  The only portion of SH 1 that existed after 1939 was a short spur located in Dallas.  Texas State Highway 1 was officially cancelled on August 20, 1952.  Due to the highway's historic value, a highway can not be designated as Texas State Highway 1 unless by the order of TxDOT Executive Director or by the Transportation Commission.

New Zealand State Highway 96: State Highway 96 is a New Zealand state highway connecting the Southland communities of Mataura, Winton, and Ohai.  Starting at State Highway 1 the highway is 92 kilometres in length and runs in a general east-west direction.  In Winton State Highway 96 runs concurrently with State Highway 6 for 1.6 kilometres.

Leithfield: Leithfield is a small town in north Canterbury, New Zealand.  It is on State Highway 1, 5 km south of Amberley and 42 km north of Christchurch.  The Leithfield area consists of two semi-distinct areas, Leithfield Beach to the east of State Highway 1 and Leithfield Village adjacent to and immediately to the west of State Highway 1.

Montana Highway 1: Montana State Highway 1 (MT 1) is a state highway located in southwestern Montana, extending west and north from Opportunity to Drummond.  Midway between these two points is the Grant-Kohrs Ranch, an historic site.  Both the beginning and endpoints of the road are on Interstate 90.  It is known as the Pintler Scenic Loop and receives a lot of tourist travel every year to visit the historic mining towns of Philipsburg and Granite and to visit the Georgetown Lake and Discovery Ski Area.

Clinton, New Zealand: Clinton is a small town in South Otago, in New Zealand's South Island.  It is located on State Highway 1 approximately halfway between Balclutha and Gore (the section of State Highway 1 between Clinton and Gore is known as "The Presidential Highway", after Bill Clinton and Al Gore, though the names are a coincidence), and the Main South Line railway passes through the town.

New Zealand State Highway 20: State Highway 20, also known as the Southwestern Motorway, is a New Zealand state highway linking State Highway 1 at Manukau City Centre with State Highway 16 in Point Chevalier, via Mangere and Onehunga.  Along with its spurs, State Highway 20A and 20B, the state highway serves Auckland Airport, the country's largest, therefore making State Highway 20 a key arterial route connecting the airport to the wider Auckland region and most of the upper North Island.  The route also forms the southern part of the Western Ring Route, a 48 km motorway route bypassing central Auckland.  It is the only New Zealand State Highway that is entirely motorway.

Philipsburg, Montana: Philipsburg is a town in and the county seat of Granite County, Montana, United States.  The population was 820 at the 2010 census.  The town was named after the famous mining engineer Philip Deidesheimer, who designed and supervised the construction of the ore smelter around which the town originally formed.

Supporting paragraphs: Montana Highway 1 Philipsburg, Montana
Answer: Philipsburg