Trivia
Geography of LA
LA River History
100

The LA River is this many miles long.

What is 51?

100

The area around the LA River was originally inhabited by these people.

Who are the Tongva?

100

The LA river is named for this city.

What is Los Angeles?

200

This river, often mistaken for a concrete channel, runs through Los Angeles and is an important part of the city's history and development.

What is the LA River?

200

Before it was channelized, the LA River flowed through this geographic area, known for its wetlands and lush vegetation.

What is the San Fernando Valley?

200

The LA River runs through this famous entertainment district, where the river has often been used as a backdrop in movies and television.

What is Hollywood?

300

The LA River is part of the larger watershed that flows into this ocean.

What is the Pacific Ocean?"

300

This park, located near the LA River in downtown Los Angeles, is a popular place to bike and walk along the water.

What is the LA State Historic Park?

300

This bridge, a historic crossing of the LA River, is known for its striking arches and is often featured in photographs.

What is the Sixth Street Viaduct?

400

This type of pollution, caused by runoff from streets, often affects the water quality in the LA River, especially after heavy rainfall.

What is urban runoff?

400

This species of fish, also known as the "saltwater bass," has been reintroduced into the LA River as part of an ongoing ecological restoration project.

What is the steelhead trout?

400

In the 21st century, this program has sought to transform parts of the LA River from a flood control channel into a more natural, accessible green space for residents.

What is the LA River Revitalization Master Plan?

500

The LA River’s channelization project in the 1930s was led by this federal agency, which sought to reduce flood risk following a deadly flood in 1938.

What is the Army Corps of Engineers?

500

This major LA River tributary enters the main river near downtown Los Angeles and flows through several neighborhoods.

What is the Arroyo Seco?

500

This year marked the beginning of the concrete channelization of the Los Angeles River, transforming it from a natural waterway to its current, engineered form.

What is 1938?

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