History
The number of years to develop the Grand Canyon
What is 70 million?
The segment formed 50-70 million years ago
What is the Hurricane Segment?
What is 4 miles per hour?
The base level and course of the Colorado River is causing this process
What is erosion?
The number of years scientists have gathered data about the Grand Canyon
What is 150 years
The segment cut 15-25 million years ago
What is the Eastern Grand Canyon Segment?
The number of years attributed to the Grand Canyon's erosion
What is 5.3 million years?
This body of water cuts layer after layer of rock in the Grand Canyon
What is the Colorado River?
The segments carved in the last 5-6 million years ago
What are the Marble Canyon and Westernmost Grad Canyon segments?
These have influenced the Grand Canyon region's flow of water
What are geologic faults/folds?
The body of water that opened and lowered the Colorado River's base level
The landform in Arizona that is 277 miles long, 18 miles wide and 1 mile deep
What is the Grand Canyon?
The 3 sets of rocks found in the Grand Canyon
What are Layered, Supergroup, Vishnu Rocks?
The post-1950 period that marks the Grand Canyon's groundwater
What is modern water?
The Gulf of California cut the Grand Canyon's current depth by these many years
What is 1.2 million?
The most popular rim in the Grand Canyon
What is the South Rim?
What is 2 billion years?
The age range of the South's Rim groundwater
The body of water that has carved the Grand Canyon in Arizona
What is the Colorado River?