Q 01/05

Hoover Dam was built in which gorge of the Colorado River?

A) Glen Canyon

B) Black Canyon

C) Cataract Canyon

D) Marble Canyon

Answer · why

B) Black Canyon

Black Canyon is where the dam rose; a study had first recommended another canyon upstream, and the whole project kept that earlier canyon's name even ...

Q 02/05

Hoover Dam straddles the border between Nevada and which other state?

A) Utah

B) California

C) Arizona

D) New Mexico

Answer · why

C) Arizona

Arizona is on the dam's eastern side; because the two states keep different time zones, a walk across the 45-foot-wide crest can move a visitor's watc...

Q 03/05

Hoover Dam is roughly 30 miles southeast of which major city?

A) Phoenix

B) Tucson

C) Flagstaff

D) Las Vegas

Answer · why

D) Las Vegas

Las Vegas, about 30 miles northwest, was a town of roughly 5,000 when the dam was approved; thousands of jobless men poured in and camped nearby, hopi...

Q 04/05

Which president dedicated Hoover Dam without once mentioning Herbert Hoover's name?

A) Franklin D. Roosevelt

B) Dwight D. Eisenhower

C) Lyndon B. Johnson

D) Woodrow Wilson

Answer · why

A) Franklin D. Roosevelt

Franklin D. Roosevelt opened his dedication speech on September 30, 1935, with 'This morning I came, I saw and I was conquered' and never once spoke h...

Q 05/05

Lake Mead and its shores became the first of which kind of U.S. park unit?

A) National seashore

B) National preserve

C) National recreation area

D) National monument

Answer · why

C) National recreation area

National recreation area was a new label when the Park Service took charge of the reservoir's shores; the country's first, it now draws millions of bo...