It's about one-six-hundred-thousandth as long as The Colorado River
In other words, 13 feet is 0.0000017 times the length of The Colorado River, and the length of The Colorado River is 588,000 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 7,640,000 feet in length. Along this length, the river descends from its source, approximately 9,020 feet above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about 650,000 times as long as a Cell's Nucleus
In other words, 13 feet is 660,000 times the length of a Cell's Nucleus, and the length of a Cell's Nucleus is 0.0000015 times that amount.(for animal cell)
The nucleus of an animal cell measures an average of 0.0000200 feet. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.
It's about one-seven-hundred-thousandth as long as The Danube
In other words, 13 feet is 0.00000139 times the length of The Danube, and the length of The Danube is 719,000 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 9,350,000 feet 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 one-nine-hundred-thousandth as long as The Oregon Trail
In other words, 13 feet is 0.00000114 times the length of The Oregon Trail, and the length of The Oregon Trail is 877,000 times that amount.(from Independence, Missouri to Oregon City, Oregon)
The historic Oregon Trail stretched 11,500,000 feet 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 one-nine-hundred-thousandth as long as The Volga
In other words, 13 feet is 0.00000112 times the length of The Volga, and the length of The Volga is 893,000 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 11,600,000 feet 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 one-nine-hundred-fifty-thousandth as long as The Mississippi River
In other words, 13 feet is 0.000001052 times the length of The Mississippi River, and the length of The Mississippi River is 950,600 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 12,360,000 feet. 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 0.0000009 times as long as The Distance from L.A. to New York
In other words, 13 feet is 0.000000882 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 1,130,000 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 14,700,000 feet 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.