Question: About how many mi are there between Lake Mead and the stretch of South Las Vegas Boulevard that is considered a scenic route at night?
Context: Lake Mead is the largest reservoir in the United States in terms of water capacity.  Formed by the Hoover Dam, the reservoir serves water to the states of Arizona, California, and Nevada, providing sustenance to nearly 20 million people and large areas of farmland.  Lake Mead is on the Colorado River, about 24 mi from the Las Vegas Strip, southeast of the city of Las Vegas, Nevada, in the states of Nevada and Arizona. Fortification Hill is a prominence adjacent to Lake Mead in the Lake Mead National Recreation Area; it is located at the northwest terminus region of the Black Mountains (Arizona), and specifically the "north region" of the Black Mountains.  It is near a southern section of Lake Mead, and just northeast of Hoover Dam.  It can easily be seen eastward across Las Vegas Bay or from the two northern mountain terminuses of Eldorado Mountains (Nevada), or the Black Mountains (Arizona). Holy Cow!  Casino and Brewery (formerly Foxy's Firehouse) was a locals casino and microbrewery on South Las Vegas Boulevard, north of the Las Vegas Strip, in Las Vegas, Nevada.  The property began in 1955 as Foxy's Deli, which operated until its closure in 1975.  A year later, the building was reopened as a casino named Foxy's Firehouse, which later closed in 1988.  Tom "Big Dog" Wiesner purchased the building and reopened it as the Holy Cow casino in 1992.  Wiesner added a microbrewery the following year, making the Holy Cow the first brewery to open in Las Vegas.  Wiesner persuaded the state to change its laws that had prohibited breweries from operating in Las Vegas. The Grandview at Las Vegas is a timeshare property resort located on 26.49 acre of land at 9940 South Las Vegas Boulevard, south of the Las Vegas Strip, in Enterprise, Nevada.  The property is owned by Eldorado Resorts Corporation, and consists of eight buildings, ranging between 12 and 20 floors, with a total of 2,256 units. Callville Bay is a waterway on the northwestern side of Lake Mead in the U.S. state of Nevada.  It features a marina and camping resort.  Situated east of Las Vegas and upstream from Las Vegas Bay, it lies within the Lake Mead National Recreation Area, which was established in 1935.  Its name derives from the settlement of Callville which was established in 1865 by Anson Call under a directive led by Brigham Young.  Though the settlement was abandoned in 1869, and submerged under Lake Mead when the Colorado River was dammed, Callville Bay retained the name. State Route 591 was a 0.242 mi state highway running east–west in the Las Vegas Valley along Spring Mountain Road.  The road parallels Spring Mountain from just east of Valley View Boulevard to just west of Rainbow Boulevard.  Spring Mountain Road has one terminus at Las Vegas Boulevard on the east and Hualapai Way on the west.  East of Las Vegas Boulevard, Spring Mountain becomes Sands Avenue, and again to Twain Avenue east of Koval Lane. State Route 147 (SR 147) is a state highway serving the Las Vegas Valley in southern Nevada.  It is signed as Lake Mead Boulevard and runs from Interstate 15 in North Las Vegas east to the border of the Lake Mead National Recreation Area.  It is not to be confused with Lake Mead Parkway (formerly Lake Mead Drive), which also goes to Lake Mead but mainly runs in southern Las Vegas Valley and carries the designation of State Route 564. Las Vegas Bay is a bay at the western edge of Lake Mead in the U.S. state of Nevada.  The bay is located within the Lake Mead National Recreation Area to the northeast of the city of Henderson, Nevada, near the junction of Lake Mead Drive and Lake Mead Boulevard.  A public campground and boat access are available in Las Vegas Bay.  Low water levels of Lake Mead have rendered the marina there inoperable, and it has moved to the Hemenway Boat Harbor, in the south end of the Boulder Basin.  The launch ramp there has also been closed due to the water levels. 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: 24