Question: Sentinel High school and Hellgate High school are both located where?

Context paragraphs:
Eric Hays: Eric Hays is a former University of Montana basketball player who served as head basketball coach of at Hellgate High School in Missoula, Mont., for 25 years.  He was a mathematics teacher there until his retirement in 2009.

Hellgate High School: Hellgate High School is a Missoula, Montana high school, the largest in the Missoula County Public Schools District.  Hellgate has approximately 1200 students, and a faculty of approximately 100.  It is an AA high school, the classification given to Montana's largest high schools.  It was ranked Montana's fourth-best high school by US News, beating the district's Sentinel, which was sixth, and both Big Sky and Seeley-Swan which were unranked.

Vanguard-Sentinel Career and Technology Centers: The Vanguard-Sentinel Career and Technology Centers are joint vocational schools located in Fremont, Ohio and Tiffin, Ohio.  Vanguard Tech Center is located in Fremont, adjacent to Fremont Ross High School, while Sentinel Career and Technology Center is located south of Tiffin.

Sentinel High School: Sentinel High School is located in Missoula, Montana.  It is in the Missoula County Public Schools District No. 1.  Sentinel has approximately 1,200 students, and a faculty of approximately 100.  Sentinel was ranked 6th best high school in the state of Montana, two spots behind the district's Hellgate.  Big Sky and Seeley-Swan were unranked.

John Engen: John Engen has been mayor of Missoula, Montana, since 2006.  Missoula’s 50th mayor, Engen was born in Missoula in 1964, attended Willard Elementary School, Hellgate High School and The University of Montana, where he earned a bachelor's degree in journalism.

Jim Simmons (American football): James Ellington "Jenks" Simmons (April 3, 1903 – January 16, 1977) was an American football back who played two seasons in the National Football League (NFL) with the Cleveland Bulldogs and Providence Steam Roller.  He played college football at Southwestern Oklahoma State University and attended Sentinel High School in Sentinel, Oklahoma.

Supporting paragraphs: Sentinel High School Hellgate High School
Answer: Missoula, Montana