Question: Which hotel on the Las Vegas Strip in Paradise, Nevada, US did Beldon Katleman invest in that closed on July 16, 2007?
Context: SLS station (originally Sahara) is a station on the Las Vegas Monorail, in Las Vegas, Nevada, United States.  The station is a side platform located at the Sahara Hotel and Casino.  The Sahara Station could be reached in two ways: from inside the hotel via a hallway located behind the Casbar Theatre Lounge (closed on May 16, 2011) or from street level on Paradise Road behind the Sahara.  The tracks just north of Sahara station were designed to provide access to a possible downtown extension of the monorail via the northern portion of the Las Vegas Strip in the area of the Circus Circus Las Vegas and the Riviera. The Las Vegas Monorail is a 3.9 mi monorail mass transit system located adjacent to the Las Vegas Strip, in Clark County, Nevada, United States.  It connects several large casinos in the unincorporated communities of Paradise and Winchester, and does not enter the City of Las Vegas.  It is owned and operated by the Las Vegas Monorail Company.  In 2013, total annual ridership was roughly 4.2 million, down from a pre-Great Recession peak of 7.9 million in 2007.  The monorail is a registered not-for-profit corporation, allowed under Nevada law since the monorail provides a public service.  The State of Nevada assisted in bond financing, but no public money was used in construction. Naked City is a neighborhood located in Las Vegas, Nevada north of the Las Vegas Strip The neighborhood is located at the northern end of the Las Vegas Strip, near the intersection of Las Vegas Boulevard and Sahara Avenue.  Due to the lack of commitment to updating the neighborhood, Naked City went from a modern neighborhood to a run down area full of poverty.  Naked City has been known to be one of the most dangerous neighborhoods in Las Vegas. Beldon Katleman (1914–1988) was an American businessman.  He was the owner of El Rancho Vegas, a casino in Las Vegas, Nevada, where he invented the buffet for guests.  He was an investor in two other casinos, the Frontier Hotel and the Silver Slipper. The Trump International Hotel Las Vegas is a 64-story luxury hotel, condominium, and timeshare located on Fashion Show Drive near Las Vegas Boulevard, just off the Las Vegas Strip in Paradise, Nevada, named for real estate developer and the 45th and current President of the United States Donald Trump.  It is located across the street from Wynn Las Vegas, behind Alon Las Vegas on 3.46 acre , near the Fashion Show Mall, and features both non-residential hotel condominiums and residential condominiums.  The exterior glass is infused with gold.  The hotel is a member of The Leading Hotels of the World. The New Frontier (formerly Last Frontier and The Frontier) was a hotel and casino on the Las Vegas Strip in Paradise, Nevada, US.  It was the second resort that opened on the Las Vegas Strip and operated continuously from October 30, 1942 until it closed on July 16, 2007.  The building was demolished on November 13, 2007.  The land is now owned by Crown Resorts who abandoned their project to build the Alon Las Vegas in May 2017 and put it up for sale. The Las Vegas–Paradise, NV MSA, also known as the Las Vegas–Henderson–Paradise, NV Metropolitan Statistical Area (2013), is in the southern part of the U.S. state of Nevada, coextensive since 2003 with Clark County, Nevada.  A central part of the metropolitan area is the Las Vegas Valley, a 600 sqmi basin that includes the metropolitan area's largest city, Las Vegas as well as the other primary city, Paradise, Nevada.  The area contains the largest concentration of people in the state.  Cities in the metropolitan area include Las Vegas, Henderson, North Las Vegas, and Boulder City.  The metropolitan area is one of the top tourist destinations in the world, drawing over 40 million international and domestic visitors in 2013 with a GMP of US$103.3 billion. Downtown Las Vegas (commonly abbreviated as DTLV) is the central business district and historic center of Las Vegas, Nevada.  It is the original townsite and was the gambling district of Las Vegas prior to the Strip, and the area still incorporates downtown gaming.  As the urban core of the Las Vegas Valley, it features a variety of hotel and business highrises, cultural centers, historical buildings and government institutions, as well as residential and retail developments.  Downtown is located in the center of the Las Vegas Valley and just north of the Las Vegas Strip, centered on Fremont Street, the Fremont Street Experience and Fremont East.  The city defines the area as bounded by I-15 on the west, Washington Avenue on the north, Maryland Parkway on the east and Sahara Avenue on the south. The Tropicana – Las Vegas Boulevard intersection on the Las Vegas Strip (Tropicana Avenue and Las Vegas Boulevard), is noteworthy for several reasons.  It was the first intersection in Las Vegas completely closed to street level pedestrian traffic and its four corners are home to four major resorts: Excalibur Hotel and Casino, Tropicana Las Vegas, New York-New York Hotel and Casino and MGM Grand Las Vegas—the latter has 5,044 rooms and was once the largest hotel in the world.  The resorts at the four corners have a total of 12,536 hotel rooms as of 2016. The Las Vegas Strip is a stretch of South Las Vegas Boulevard in Clark County, Nevada, known for its concentration of resort hotels and casinos.  The Strip is approximately 4.2 mi in length, located immediately south of the Las Vegas city limits in the unincorporated towns of Paradise and Winchester.  However, the Strip is often referred to as being in Las Vegas.  Most of the Strip has been designated an All-American Road, and is considered a scenic route at night.
Answer: Frontier Hotel