It's about 500 times as long as a Man's Footstep.
In other words, the length of a Man's Footstep is 0.0019 times 451 yards.(for healthy, middle-aged man of average height; single step length)
According to studies by The University of Oklahoma's Health Sciences Center, the average length of a man's step is 0.860 yards, for an average stride (two-step's length) of 1.70 yards. The average person walks at a speed of about 1.3 m/s
It's about 600 times as long as a Woman's Footstep.
In other words, 451 yards is 620 times the length of a Woman's Footstep, and the length of a Woman's Footstep is 0.0016 times that amount.(for healthy, middle-aged woman of average height; single step length)
According to studies by The University of Oklahoma's Health Sciences Center, the average length of a woman's step is 0.720 yards, for an average stride (two-step's length) of 1.40 yards. The average person walks at a speed of about 1.3 m/s
It's about 1,000 times as tall as a Bowling Pin.
In other words, 451 yards is 1,080 times the height of a Bowling Pin, and the height of a Bowling Pin is 0.000926 times that amount.(USBC specifications; tenpin)
According to the United States Bowling Congress specifications, a tenpin bowling pin should be within 0.000868 yards of 0.4170 yards in height. The USBC further mandates that certified pins be made of sugar maple wood, unless otherwise approved by the organization.
It's about one-one-thousandth as long as The Grand Canyon.
In other words, 451 yards is 0.000925 times the length of The Grand Canyon, and the length of The Grand Canyon is 1,080 times that amount.(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 488,000 yards 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 1,200 yards above the floor of Granite Gorge.
It's about one-three-thousandth as long as The Rhine.
In other words, 451 yards is 0.000312 times the length of The Rhine, and the length of The Rhine is 3,210 times that amount.(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 1,440,000 yards 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 one-five-thousand-five-hundredth as long as The Colorado River.
In other words, 451 yards is 0.000177 times the length of The Colorado River, and the length of The Colorado River is 5,650 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 2,550,000 yards in length. Along this length, the river descends from its source, approximately 3,010 yards above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about one-seven-thousandth as long as The Danube.
In other words, 451 yards is 0.000145 times the length of The Danube, and the length of The Danube is 6,900 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 3,120,000 yards in total length. Intersecting Vienna, Austria; Bratislava, Slovakia; Budapest, Hungary; and Belgrade, Serbia, the Danube touches more capital cities than any other river.