Potomac Gorge Quiz: Test Your Knowledge
How much do you know about America’s wildest urban river and its extraordinary diversity of life? Take our Potomac Gorge quiz and find out!
How long is the Potomac Gorge corridor?
500 feet | Incorrect
1500 feet | Incorrect
15 miles | Correct
150 miles | Incorrect
Where does the upstream end of the Potomac Gorge begin?
Glen Echo | Incorrect
Great Falls | Correct
Harpers Ferry | Incorrect
Theodore Roosevelt Island | Incorrect
The Potomac Gorge harbors more than 1,400 individual species of what?
plants | Correct
beetles | Incorrect
moths | Incorrect
mammals | Incorrect
Which of these unusual habitats can be found in the Potomac Gorge?
freshwater seeps | Incorrect
riverside prairies | Incorrect
bedrock terraces | Incorrect
all of the above | Correct
Which animal has not been observed in the Potomac Gorge since the 1920s?
Allegheny woodrat | Correct
American shad | Incorrect
Appalachian spring snail | Incorrect
All of the above | Incorrect
What animal is native to the Potomac Gorge and consumes 6-8 pounds of vegetation every day?
black bear | Incorrect
white-tailed deer | Correct
southern flying squirrel | Incorrect
gypsy moth | Incorrect
What crustacean was recently discovered in the Potomac Gorge and is a non-native invasive species?
Pizzini’s amphipod | Incorrect
virile crayfish | Correct
spiny-cheeked crayfish | Incorrect
all of the above | Incorrect
How many visitors explore the Potomac Gorge yearly?
a few hundred | Incorrect
a few thousand | Incorrect
750,000 | Incorrect
more than 2 million | Correct