Geography Of The World
How Long Would It Take To Sink To The Ocean Floor?
Discover how ocean depth, buoyancy, pressure, and body composition affect how quickly a person could sink in deep water.
How The Mississippi Compares To The Nile
Mississippi vs Nile: the Nile is about 1,800 miles longer, yet the Mississippi carries roughly six times the water. Length, basins, flow, and deltas compared.
How Lake Michigan Holds More Water Than Lake Huron Despite Being Smaller
Lake Huron is bigger on a map. Lake Michigan holds 39 percent more water. One number explains it, and it is not maximum depth.
The US Rivers With The Most Water Moccasins
Cottonmouths are a swamp animal that happens to live along rivers. The US rivers with the most, led by the Atchafalaya, and why the margins matter more than the channel.
The Most Dangerous Rip Currents On US Beaches
Rip currents on US beaches kill more than 100 people a year, with deadly clusters at Panama City Beach, Daytona Beach, the Carolinas, and Lake Michigan.
The Most Dammed Rivers In America
The Most Dammed Rivers In America include the Columbia, Colorado, Snake, and Missouri, where dams power cities, water farms, and reshape river ecosystems.
What Happens If Blue Mesa Is Drained To Save Lake Powell
Blue Mesa, Colorado's largest lake, has been drained to prop up Lake Powell. What that does to its record-low water, its marinas, and its famous kokanee salmon.
How The Himalayas Compare To The Rockies
How the Himalayas and Rockies compare in height, length, age, glacier ice, earthquakes, and the rivers they feed, from Everest to the Continental Divide.
The Tribes That Hold the Oldest Colorado River Water Rights In The US
The Navajo Nation, Hopi Tribe and San Juan Southern Paiute hold senior Colorado River rights, but four Upper Basin states are blocking their settlement.
The Year The Cuyahoga River Caught Fire
The Year The Cuyahoga River Caught Fire. It was not the river's first fire, but Mayor Carl Stokes turned the blaze into a national push for cleaner water.
What Would Happen If The Atlantic Conveyor Slowed Down
The Atlantic Conveyor is part of the global ocean conveyor belt, in which water moves around the globe over the course of 1000 years.
The US Rivers With The Highest PFAS Levels
Near wastewater outfalls, PFAS ran highest on South Carolina's Pocotaligo among six US rivers tested, measured in river water and not household taps.
The Rivers Where Trout Grow Largest
The Rivers Where Trout Grow Largest. Arkansas tailwaters have produced browns near forty pounds, while steelhead and rainbows grow big on sea time and salmon.
How Deep The Titanic Wreck Actually Sits
The Titanic rests 12,500 feet down in the North Atlantic — crushing depth, but only a third of the way to the ocean's true floor. Here's what that means.
The American Power Plants Built Inside A Mountain
From Tennessee's Raccoon Mountain to Washington's Boundary Dam, several U.S. power plants run their turbines deep inside excavated mountain rock.
How Much Of The Colorado River Mexico Actually Gets
Mexico gets 1.5 million acre-feet of the Colorado River a year under a 1944 treaty, just under 10%. Why nearly all of it is used up before the river reaches the sea.
The US Lakes With The Highest Mercury Levels
The fish look healthy, but EPA tests found the highest mercury levels in these US lakes. See which catches state health officials say to limit or avoid.
Why Some American Rivers Flow North
Several American rivers flow north, from the Red River of the North to Florida's St. Johns, because gravity and each region's geology tip the land that way.
The US Rivers Where Snapping Turtles Grow Largest
The US Rivers Where Snapping Turtles Grow Largest include the Sabine, Suwannee, and Trinity, where wild alligator snappers have topped the hundred-pound mark.
The Ocean Creatures That Can Kill You Without Teeth
Some of the ocean's deadliest animals have no teeth at all, relying instead on venom, paralyzing stings, and a saliva far more potent than cyanide.
Why Great Lakes Freighters Are Shaped Differently Than Ocean Ships
The biggest Great Lakes freighter can never reach the sea, yet a smaller ocean ship sailed thousands of miles inland past it. The hull explains it.
How Lake Nipigon Compares To The Great Lakes
Lake Nipigon is smaller than every Great Lake, yet it's deeper than Erie, sits above Superior, and feeds it. How Ontario's "sixth Great Lake" really compares.
Why Denali Is Harder To Climb Than Everest
Lower summit, harder climb. Thin polar air, 100-pound loads, and rescue that can be days away make Denali a tougher test than Everest for most climbers.
The Most Remote Point In American Waters
Beyond the contiguous United States, numerous American territories allow the country to claim and control vast swathes of ocean.
The Lakes Where Kokanee Salmon Grow Largest
Cold, clear water and few predators turn landlocked sockeye into 9-pound giants. Here are the Western lakes and reservoirs where trophy kokanee thrive.
What Happens If Lake Powell Is Drained To Fill Lake Mead
Fill Mead First has been proposed since the 1990s. What draining Lake Powell into Lake Mead would actually do, and the plumbing problem that matters either way.
The Last River Still Running Wild Through A Major City
Every large American city sits on a river somebody decided to control. One river escaped, and it still floods, moves gravel and rebuilds its own channel.
How Long Would It Take To Walk Around Lake Michigan
A 45-year-old from Battle Creek walked around Lake Michigan in 2009. It took 64 days, 1,019 miles, and one gallstone attack. How long it would take you.
The American Rivers With The Strongest Undertow
The American Rivers With The Strongest Undertow. Calm water on the Potomac, Colorado, and Mississippi can hide downward currents that pull swimmers under.
The Rivers Where Catfish Grow Largest
From the Mississippi near Natchez to Georgia's Altamaha, these American rivers have produced record blue and flathead catfish over 100 pounds.
The American Coastlines Where The Seafloor Drops Fastest
The American Coastlines Where The Seafloor Drops Fastest run along California, the Pacific Northwest, and Alaska, where narrow shelves fall to deep water.
Why Lake Mead Keeps Dropping Through The Fall
Lake Mead does its falling in spring and summer, not autumn. Why the reservoir behaves the opposite way to Lake Powell, and what made 2026 look different.
The Year The Columbia Drowned Celilo Falls
The Year The Columbia Drowned Celilo Falls. The Dalles Dam silenced a fishery Native peoples relied on for millennia, and the loss still shapes dam debates.
What Happens If The Missouri's Reservoirs Hit Dead Pool
The lake still looks full, but nothing reaches the pipes. Inside what dead pool would do to Missouri's reservoirs, from drinking water to power to boating.
The Difference Between A Sea And An Ocean
Discover the key differences between seas and oceans, from size and depth to geography, salinity, climate, and marine life.
How Lake Ladoga Compares To The Great Lakes
Europe's largest lake would finish sixth out of six in the Great Lakes. How Lake Ladoga compares, and the one contest it wins by a single metre.
The Most Climbed Mountain In America
Mount Monadnock in New Hampshire draws around 125,000 climbers a year, with a 3,165-foot summit most hikers reach in a few hours and views across six states.
How The Andes Compare To The Rockies
Mount Elbert is the highest point in the Rockies and would not make the Andean top fifty. How the two ranges compare, and the statistic that ends the argument.
What Happens If Lake Powell Is Drained To Save Lake Mead
Fill Mead First has been proposed since the 1990s. What draining Lake Powell into Lake Mead would actually do, and the plumbing problem that matters either way.
How Much Of Earth Is Covered By Ocean?
Oceans cover about 71% of Earth’s surface. See how the world’s five oceans compare in size and depth as well as climate and geography.