Age and time
Rock ID
Park features
Geologic processes
Park ID
100
Age of the core complex of crystalline rock at Joshua Tree National Park

Precambrian

100

Biological sedimentary rock originating from accumulations on the ocean floor and found at Hot Springs National Park

Chert or Flint

100

Highest point in the lower 48 states and located in Sequoia National Park

Mt. Whitney

100

Causes the hot springs at Hot Springs National Park to be lower temperatures than the ones at Yellowstone

Groundwater heated by fault movement friction 

100

Two parks located directly next to each other

Sequoia National Park and Kings Canyon National Park

200

Age of the granite batholith at under Sequoia and King National Park

Mesozoic

200

Glacial striations, domes, and sheets of rock are features of this rock commonly found in Sequoia National Park and Kings Canyon National Park

Granite

200

Lowest point in Death Valley National Park that happens to be very salty

Badwater Basin

200

The first stage of mountain building where sediment collects

Accumulation stage

200

Park with the lowest land in the US

Death Valley National Park

300

Time when multiple cycles of mountain building happened in the Appalachians

Paleozoic

300

Intrusions found in Grand Teton National Park

Diabase

300

Part of a fault visible from the surface and found at Death Valley National Park

Fault scarp

300

The second stage of mountain building where folding and faulting occur

Orogenic stage

300

Has some of the oldest trees in the world

Great Basin National Park

400
Part of the continental plates where the oldest rock is found

Craton

400

Intrusions found in Joshua Tree National Park

Granite and diorite

400

The area based in Nevada where no surface water drains to the ocean

Great basin

400

Rock folding that forms an arch with the oldest rock in the center

Anticline

400

Park with little exposed rock besides outcrops and is mostly covered with vegetation

Shenandoah National Park

500

What is the age of the limestone in Cades Cove at Great Smoky Mountain National Parks that supports fertile soil

Paleozoic

500

Primary composition of mountains in the Basin and Range province

Precambrian metamorphic crystalline core complex

500

Greenstone in Shenandoah National Park makes up these features

Meadows or rock outcrops

500

Causes the high rate of chemical weathering and numerous waterfalls at Great Smoky Mountains National Park

High amount of rainfall

500

Two parks that are geologically similar to Yosemite except for having more Paleozoic sedimentary rock

Sequoia National Park and Kings Canyon National Park

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