It's about one-and-one-third times as long as The Rhine.
In other words, the length of The Rhine is 0.7580 times 313.820 leagues.(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 238 leagues 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 three-fourths as long as The Colorado River.
In other words, 313.820 leagues is 0.7480 times the length of The Colorado River, and the length of The Colorado River is 1.340 times that amount.(a.k.a. Aha Kwahwat, a.k.a. Grand River, a.k.a. Tizon River, a.k.a. Tecon River, a.k.a. Tison River) (from Grand Lake, Colorado through the Gulf of California)
The Colorado River runs 419 leagues in length. Along this length, the river descends from its source, approximately 0.4950 leagues above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about three-fifths as long as The Danube.
In other words, 313.820 leagues is 0.6120 times the length of The Danube, and the length of The Danube is 1.630 times that amount.(a.k.a. Donau, a.k.a. Dunaj, a.k.a. Dunav, a.k.a. Duna, a.k.a. Дунав (Dunav), a.k.a. Dunărea, a.k.a. Дунáй (Dunay), a.k.a. Tuna) (from Breg Martinskapelle, Black Forest, Germany through the Danube Delta, Romania)
The Danube river runs 513 leagues in total length. Intersecting Vienna, Austria; Bratislava, Slovakia; Budapest, Hungary; and Belgrade, Serbia, the Danube touches more capital cities than any other river.
It's about half as long as The Oregon Trail.
In other words, the length of The Oregon Trail is 2 times 313.820 leagues.(from Independence, Missouri to Oregon City, Oregon)
The historic Oregon Trail stretched 628 leagues across five (sometimes six) states in the western United States. In the early years of the Trail's existence, the trip was estimated to have taken an average of 160 days.
It's about half as long as The Volga.
In other words, 313.820 leagues is 0.4940 times the length of The Volga, and the length of The Volga is 2.02 times that amount.(a.k.a. Волга, a.k.a. İdel (Идел), a.k.a. Атăл (Atăl), a.k.a. Edil, a.k.a. İdil, a.k.a. Рав (Rav)) (from the Valdai Hills, Tver Oblast, Russia through the Caspian Sea)
The largest river in Europe, the Volga river runs 635 leagues in total length. World War II's Battle of Stalingrad between the Nazi Germany and the Soviet Union, which resulted in nearly two million casualties, was fought in part for control of the river.
It's about half as long as The Mississippi River.
In other words, 313.820 leagues is 0.4630 times the length of The Mississippi River, and the length of The Mississippi River is 2.160 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 677.80 leagues. Prior to the development of soil erosion programs, the Mississippi River would carry approximately 400 million metric tons of sediment from its banks to the Gulf of Mexico every year.
It's about two-fifths as long as The Distance from L.A. to New York.
In other words, 313.820 leagues is 0.3880 times the length of The Distance from L.A. to New York, and the length of The Distance from L.A. to New York is 2.580 times that amount.(Los Angeles, California to New York City, New York) (via I-10 E, I-15 N, I-70 E, I-76 E, I-80 E, I-280 E)
The total length of the freeway route from Los Angeles, California to New York City, New York via Interstate 80 is 808 leagues long. This route intersects eleven states and several major cities, including Las Vegas, Nevada; Denver, Colorado; Lincoln, Nebraska; Omaha, Nebraska; Des Moines, Iowa; South Bend, Indiana; and Cleveland, Ohio.