"The Roe River runs from Giant Springs to the Missouri River near Great Falls, Montana, United States. The Roe River is only 201 feet (61 m) long at its longest constant point, and had been named as the World's Shortest River by the Guinness Book of World Records before Guinness eliminated the category in 2006. Towards its mouth, the Roe is about 6–8 feet (1.8–2.4 m) deep. (Wikipedia)

"A successful campaign to get the Roe River recognized by the Guinness World Records as the shortest river in the world originated in 1987 with fifth-grade students of teacher Susie Nardlinger at Lincoln Elementary School in Great Falls.

"Previously, Oregon's D River was listed in Guinness World Records as the world's shortest river at 440 feet (130 m). This title was contested in 1989 when Guinness named the Roe River as the world's shortest. Not to be deterred, the people of Lincoln City submitted a new measurement of the D River to Guinness of about 120 feet (37 m) long, when marked at "extreme high tide".

"The world’s shortest river, no matter what Oregon wants to say about it. The Roe River is 201 feet and flows from the source at Giant Springs to the Missouri River," the Visit Great Falls Montana says.

"You’ll find the Missouri River along the River’s Edge Trail system.We get that it’s weird that the hours below shows that the River closes. Access to the river closes because Giant Springs State Park, where the river is located, closes."

"The Roe River was named the world's shortest river in the 1989 Guinness Book of World Records. Before that year, the title had belonged to the 440-foot-long (134-meters-long) D River in Lincoln City, Oregon. Both rivers have been measured at various lengths at different times, and residents in both cities soon disputed which river should rightfully hold the title. In 2006 Guinness opted to avoid the controversy and dropped the category altogether," the howstuffworks.com says.

"According to the World Atlas, there are even shorter rivers elsewhere in the world, including the Tamborasi River in Indonesia, which has been measured at 20 meters, or 65.6 feet, long and the Kovasselva River in Norway, which has also been measured at 65.6 feet long.

"But can a river truly only flow for 65 feet? The truth is, the definition of a river is fairly broad. According to the U.S. Geological Survey, a river has constant flowing water in the form of a current, it's fed by upland sources and it deposits water in the ocean, another river, lake or watershed. Generally speaking, creeks and brooks flow together to form streams, streams flow together to become rivers and rivers ultimately transport water from higher elevations to lower ones, ending in the ocean."

"The Missouri River is the longest river in the country," said Giant Springs State Park ranger Tamara Tollett. "Then right next to it we have the Roe, which is the shortest river in the world," the NBC Montana reports.

In the 1980's, Lincoln School Elementary teacher Susan Nardinger and her fifth-graders successfully campaigned to list the Roe River in the Guinness Book of World Records."

"The Roe River near Great Falls, Montana, is a mere 201 feet long—that's about twice as long as the distance between first and second base on a baseball diamond. Flowing continuously from its headwaters in Giant Springs to the mouth at the Missouri River, the Roe has the distinction of being the shortest river in North America," the Atlas Obscura says.

"In fact, the Roe River is often called the shortest river in the world and was actually awarded that Guinness World Record in 1987 after some petitioning by a group of local elementary students. (As a sign on the riverbank explains, it was also given the name "Roe" at the time, meaning fish eggs, for its proximity to the State Fish Hatchery.)"

"Roe River, which is recognized as the World’s Shortest River by Guinness World Records runs 201 feet (61m) which is only as big as 1 and 1/4 Olympic size swimming pool. The Roe flows between Giant Springs and the Missouri River near the Great Falls. Towards the end, Roe River becomes deep at around 6-8 feet," the bigskyblog.com says.

"The source of Roe River is the Giant Springs which is considered the largest freshwater spring in the United States. Giant Springs has an average discharged of 242 cubic feet, which can technically fill up about two and a half Olympic size swimming pools.

"Its water temperature of 54°F originates from the snowmelt in the Little Belt Mountains, 60 miles away. It has been said that the water takes about 26 years to travel underground before returning to surface at the springs. Some of the discharged water is used for a Montana trout hatchery named Giant Springs Trout Hatchery."

"Unlike the Nile's impressive designation as the longest river in the world, the Roe River, which didn't even have a name until 1988, holds a more diminutive title. Flowing through Giant Springs State Park in Cascade County, parallel to the much more impressive Missouri River, the Roe River is short. Really short," the grunge.com says.

"It averages just 201 feet in length. "The Missouri River is the longest river in the country," Giant Springs State Park ranger Tamara Tollett told NBC Montana in 2019. "Then right next to it, we have the Roe, which is the shortest river in the world." Oregonians dispute this designation.

"It was Susie Nardinger's 5th grade class at Lincoln Elementary School in Great Falls, Montana, that got the controversy going back in the fall of 1987, according to the Great Falls Tribune. After naming the body of water for fish eggs (the river flows near a fish hatchery), the students then petitioned the federal government, specifically the Domestic Names Committee of the U.S. Board on Geographic Names to officially recognize the river."

World's Highest Navigable River, world record set by The Saint Joe River

World's Longest Continuous Peninsula Beach, world record in Long Beach, Washington

World’s Largest Small-Scale Model, The Mississippi River Basin Model sets world record

World’s Largest River Wave, world record in O'ahu, Hawaii

Youngest Person to Scuba Dive all Seven Continents, world record set by Archer Lamp’l

 Largest rock sculpture on a river bank: The rock sculpture of Decebalus

Most countries passed by a river: world record set by The Danube River