It's about as long as The Oregon Trail
It's about as long as The Volga
In other words, the length of The Volga is 1.01 times 349,000,000 centimeters.(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 353,000,000 centimeters 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 nine-tenths as long as The Mississippi River
In other words, 349,000,000 centimeters is 0.92670 times the length of The Mississippi River, and the length of The Mississippi River is 1.079 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 376,600,000 centimeters. 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 one-and-one-fifth times as long as The Danube
In other words, 349,000,000 centimeters is 1.220 times the length of The Danube, and the length of The Danube is 0.820 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 285,000,000 centimeters 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 four-fifths as long as The Distance from L.A. to New York
In other words, 349,000,000 centimeters is 0.7770 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 1.290 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 449,000,000 centimeters 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.
It's about three-fourths as long as I-80
In other words, 349,000,000 centimeters is 0.7524750 times the length of I-80, and the length of I-80 is 1.328950 times that amount.(a.k.a. Interstate 80, a.k.a. Keystone Shortway) (net length)
Interstate 80, crosses the continent of North America from Teaneck, New Jersey to San Francisco, California and covers a total length of 463,803,000 centimeters. A 6,000,000 centimeters stretch between mile marker 318 in Grand Island, Nebraska and mile marker 390 in Lincoln, Nebraska is the longest straight path in the US Interstate system.
It's about one-and-a-half times as long as The Colorado River
In other words, the length of The Colorado River is 0.6670 times 349,000,000 centimeters.(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 233,000,000 centimeters in length. Along this length, the river descends from its source, approximately 275,000 centimeters above sea level in the Rocky Mountains, to its mouth in the Gulf of California.