Question: What county in Nevada contains both the City of Las Vegas and the College of Southern Nevada?
Context: RTC Transit is the name of the bus system in the Las Vegas metropolitan area of Clark County, Nevada.  It is a subsidiary of the Regional Transportation Commission of Southern Nevada.  While it services most of Clark County with regularly scheduled routes, most of the service is in the immediate Las Vegas Valley; outlying places such as Mesquite and Laughlin provide transit services to their residents by way of the Southern Nevada Transit Coalition, which uses several vehicles acquired from RTC Transit. Las Vegas Weekly is a free alternative weekly newspaper based in Henderson, Nevada, covering Las Vegas arts, entertainment, culture and news.  "Las Vegas Weekly" is published by Greenspun Media Group.  The paper was founded in 1992 by James P. Reza, Greg Ryan and Robert Ringle as a free monthly publication called "Scope Magazine" covering Southern Nevada's culture, arts, music and lifestyle from a decidedly Generation X perspective .  "Scope" published its first issue in April 1992.  In 1996, Reza partnered with Daniel Greenspun, forming a new company (Radiant City Publications LLC) to publish "Scope".  During this partnership, Reza continued on as Managing Editor, broadening the coverage to a more traditional alternative newsweekly style, and accelerated the publishing schedule to biweekly.  In 1998, Reza sold his remaining interest in "Scope" to The Greenspun Corporation, who retooled it and renamed it "Las Vegas Weekly".  As of December 2009, "Las Vegas Weekly" had a circulation of 65,000. The Sunrise 4A Region is a part of the Nevada Interscholastic Activities Association and is one of two conferences in Southern Nevada 4A high school athletics.  The Sunrise Region consists of large schools in Henderson, Nevada and on the eastern parts of Las Vegas and North Las Vegas, Nevada.  There are two division in the Sunrise 4A Region, Northeast and Southeast.  The Sunrise 4A Region was a part of the Southern Nevada 4-A Region, until the conference was divided into two separate regions before the 2000-01 school year due to the constant expansion and development of new high schools in the Las Vegas Valley. The Clark County Water Reclamation District (District) is a government wastewater treatment agency in Clark County, Nevada.  As a member of the Southern Nevada Water Authority, its mission is to treat millions of gallons of wastewater that is produced every day.  The District is the largest water treatment agency in Southern Nevada and is responsible for treating wastewater from unincorporated parts of Clark County within the Las Vegas Valley, including most of the Las Vegas Strip, and the communities of Blue Diamond, Moapa Valley, Nevada, Indaian Springs, Nevada, Laughlin, Nevada, and Searchlight. The Sunset 4A Region is a part of the Nevada Interscholastic Activities Association and is one of two conferences in Southern Nevada 4A high school athletics.  The Sunset Region consists of large schools in the western parts of Las Vegas and North Las Vegas and Pahrump, Nevada.  There are two division in the Sunset 4A Region, Northwest and Southwest.  The Sunset 4A Region was a part of the Southern Nevada 4-A Region, until the conference was divided into two separate regions due to the constant expansion and development of new high schools in the Las Vegas metro. Southern Nevada (often abbreviated as SNV) is the region of Nevada which includes the Las Vegas Valley.  Southern Nevada also includes the areas in and around Tonopah, Hawthorne, Pahrump, and Pioche, though some organizations based in the Las Vegas area (e.g., the Southern Nevada Health District) effectively use the term to refer to Clark County only. Clark County is a county in the U.S. state of Nevada.  As of the 2010 census, the population was 1,951,269, with an estimated population of 2,114,801 in 2015.  It is by far the most populous county in Nevada, accounting more than two-thirds of its residents.  Las Vegas, Nevada's most populous city, has been the county seat since the county was established. University of Nevada, Las Vegas (UNLV) School of Medicine, is an academic division of the University of Nevada, Las Vegas (UNLV) with 60 students matriculated on July 17, 2017.  The students began their education with a 6 week EMT course.  The school is the first to grant the Doctor of Medicine (MD) degree in Southern Nevada.  The school uses facilities in the University Medical Center of Southern Nevada (UMCSN) clinical building at the Las Vegas Medical District. The Las Vegas Global Economic Alliance (LVGEA) is a 501(c)6 membership organization led by President and CEO Jonas R. Peterson established to promote economic diversification and growth in Clark County, Nevada, including the Cities of Las Vegas, North Las Vegas, Henderson, Boulder City, and Mesquite.  The organization was formed as the Southern Nevada Industrial Foundation in 1956, later known as the Nevada Development Authority, and finally renamed the LVGEA in 2013.  The organization has helped attract, retain and expand companies including Levi Strauss & Co., Bank of America, Zappos and SolarCity to the Las Vegas area.  The organization stated an intent to raise $7.5 million over three years through its Engage Southern Nevada Investment campaign. The College of Southern Nevada (CSN) is primarily a two-year college in Clark County, Nevada, with four four-year degrees in Dental Hygiene, Medical Lab Scientist, Respiratory Sciences, and Fire & Emergency Services Admin.  It constitutes of 2900 Teaching and Non Teaching staff.  The school is the largest public higher education institution in Nevada.  It is part of the Nevada System of Higher Education.
Answer: Clark County