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How long is 468,000 spans?

It's about as wide as The English Channel
The width of The English Channel is about 468,000 spans.
(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 468,000 spans, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.
It's about nine-tenths as long as The 405
Flag of The US
The length of The 405 is about 509,800 spans.
(a.k.a. I-405, Interstate 405, San DIego Freeway) (Southern California)
Running from Irvine to San Fernando, The 405 runs a total of 509,800 spans. The 405 is the most heavily-trafficed freeway in the United States, with an average speed as low as 8 kph during rush hours.
It's about nine-tenths as long as Hadrian's Wall
Flag of The UK
The length of Hadrian's Wall is about 520,000 spans.
(a.k.a. Roman Wall, a.k.a. The Wall, a.k.a. Vallo di Adriano, a.k.a. Vallum Aelium, a.k.a. Severus' Wall) (from North Tyneside, Tyne and Wear, England, United Kingdom to Cumbria, North West England, United Kingdom)
Hadrian's Wall, which crossed England form the North Sea to the Irish Sea during the time of Roman rule, measures 520,000 spans (about 79 Roman miles). Roman soldiers — at one time up to 10,000 of them — only occupied Great Britain for about 246 years after the wall was built, after which time the local Brits began to take residence the wall's garrisons.
It's about one-and-one-fifth times as long as The Panama Canal
Flag of Pamana
The length of The Panama Canal is about 380,000 spans.
(Canal de Panamá) (Panama)
Connecting the Atlantic and Pacific Oceans across the Isthmus of Panama, the Canal measures 380,000 spans in length. Ships passing through the Canal are raised (and then lowered) 110 spans above sea level through the lock-and-dam system.
It's about four times as tall as Olympus Mons
The height of Olympus Mons is about 120,000 spans.
(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 120,000 spans. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about one-fourth as long as The Grand Canyon
Flag of The US
The length of The Grand Canyon is about 1,950,000 spans.
(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 1,950,000 spans along the course of the Colorado River at its bottom. Having opened in early 2007, the Grand Canyon Skywalk allows tourists to stand on a horseshoe-shaped glass walkway 4,810 spans above the floor of Granite Gorge.
It's about nine-and-a-half times as tall as Maxwell Montes
The height of Maxwell Montes is about 48,000 spans.
(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 48,000 spans. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.
It's about ten times as deep as The Challenger Deep (Marianas Trench)
The depth of The Challenger Deep (Marianas Trench) is about 47,690 spans.
(near Marianas Islands, a.k.a. Ladrones Islands, northwestern Pacific Ocean) (depth below sea level)
The Challenger Deep, at the southern end of the Marianas Trench, reaches a depth of 47,690 spans below sea level. The first manned expedition to the bottom of Challenger Deep took 4 hours and 48 minutes in 1960. This was the only manned descent to the floor of the Trench until 2012, when director James Cameron made the trip; several other descents have been made since then.
It's about eleven-and-a-half times as tall as a Mauna Loa
Flag of The US
The height of a Mauna Loa is about 40,100 spans.
(Hawaii) (Hawaiian island volcano) (total height from seafloor)
Mauna Loa, one of the five volcanoes which forms the island of Hawaii and the tallest mountain in total height in the world, rises to 40,240 spans above the seafloor. The peak of Loa is home to the approximately 6,000 sq. m (0.6 ha) Lake Waiau, one of the highest altitude lakes in the United States outside of Colorado.
It's about twelve times as tall as Mount Everest
Flag of China and Flag of Nepal
The height of Mount Everest is about 38,708.90 spans.
(a.k.a. Mount Chomolungma, a.k.a. Sagarmatha, a.k.a. Mount Qomolangma, a.k.a. सगरमाथा, a.k.a. Chajamlungma, a.k.a. ཇོ་མོ་གླང་མ, a.k.a. 珠穆朗玛峰, a.k.a. Zhūmùlǎngmǎ Fēng) (Sagarmatha Zone, Nepal and Tibet, China) (to summit, excluding snow depth)
Mount Everest rises 38,708.90 spans above sea level at its summit. The plate tectonics of the Indian subcontinent continuously alter the mountain's peak — raising it by 0.0174978 spans and shifting it to the northeast by 0.019685 spans each year.
It's about one-tenth as long as The Rhine
The length of The Rhine is about 5,770,000 spans.
(a.k.a. Rhein, a.k.a. Rijn, a.k.a. Rhin, a.k.a. Rain, a.k.a. Reno, a.k.a. Rhenus, a.k.a. Ryn) (from near Reichenau, Switzerland through Hoek van Holland, Rotterdam, Netherlands)
The Rhine river runs 5,770,000 spans in total length. The World War II Battle of Arnhem, as memorialized in the 1974 book and 1977 movie A Bridge Too Far, was the first of several attempts to capture key bridges across the Rhine, beginning with the Arnhem Bridge in the Netherlands.
It's about fifteen-and-a-half times as tall as Aconcagua
Flag of Argentina
The height of Aconcagua is about 30,455 spans.
(a.k.a. Cerro Aconcagua) (Mendoza, Argentina)
Aconcagua measures 30,455 spans height at its peak. Although there is no definitive evidence that members of the indigenous Inca civilization ever reached the peak the mountain, numerous archeological sites have been found on the slopes of the mountain, including a naturally-embalmed Incan mummy was discovered on a 22,747 spans high ridge.
It's about sixteen times as long as The Las Vegas Strip
Flag of The US
The length of The Las Vegas Strip is about 30,000 spans.
(Las Vegas Boulevard S and W from Russel Rd to Sahara Ave)(Paradise, Nevada through Winchester, Nevada).
Although technically located beyond the city limits of Las Vegas (along with the well-known "Welcome to Fabulous Las Vegas" sign), the stretch of road known as the "Las Vegas Strip" runs 30,000 spans along Las Vegas Boulevard South and West from Russel Road at the south end to Sahara Avenue at the north end. The casinos and hotels on the Strip display an estimated total of 100,000,000 spans of neon light tubing.
It's about seventeen-and-a-half times as tall as Denali
Flag of The US
The height of Denali is about 27,090 spans.
(a.k.a. Mount McKinley, a.k.a. Doleika, a.k.a. Traleika, a.k.a. "The Great One") (Denali National Park and Preserve, Alaska) (South peak)
The highest mountain peak in North America, Denali's South Peak measures 27,090 spans above sea level at its peak. The impetus for the name Mount McKinley was US president William McKinley of Ohio, and disputes over the which of the mountain's names should be officially recognized regularly occur between Ohio Congressmen and Alaska politicians.
It's about eighteen times as tall as Mount Logan
Flag of Canada
The height of Mount Logan is about 26,070 spans.
(Kluane National Park and Reserve, Yukon, Canada) (elevation)
The highest mountain in Canada, Mount Logan has a total height of 26,070 spans. The high altitude and northern latitude of the mountain resulted in one-time temperature of -77.5 °C — the lowest temperature ever recorded outside of Antarctica.
 
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