Select 4 mountain ranges that are in the United States

Cascade mountains
Appalachian mountains
Rocky Mountain
Sierra Nevada mountains
Canadian shield

The four mountain ranges in the United States are:

1. Cascade Mountains (located in the states of Washington, Oregon, and California)
2. Appalachian Mountains (stretching from the Eastern United States, including states like Georgia, North Carolina, Tennessee, and Pennsylvania)
3. Rocky Mountains (crossing several western states, including Colorado, Wyoming, Montana, and Idaho)
4. Sierra Nevada Mountains (found in California and Nevada)

I'm sorry, but the Canadian Shield is not a mountain range located in the United States. However, here are four mountain ranges in the United States:

1. Cascade Range: Located in the western United States, extending from northern California through Oregon and Washington, and stretching into British Columbia in Canada.

2. Appalachian Mountains: Stretching along the eastern part of the United States, from Georgia to Maine, it is one of the oldest mountain ranges in the world.

3. Rocky Mountains: This vast range extends from New Mexico in the southern United States, through Colorado, Wyoming, Idaho, Montana, and up into Canada.

4. Sierra Nevada Mountains: Located in eastern California and extending into Nevada, it is known for its stunning peaks, including Mount Whitney, the highest peak in the contiguous United States.

Actually, the Canadian Shield is not a mountain range in the United States. However, I can help you identify four mountain ranges that are located within the United States.

1. Cascade Mountains: The Cascade Range is an impressive mountain range that stretches from northern California through Oregon and Washington, forming the western boundary of the United States. Its peaks include notable volcanoes like Mount Rainier and Mount St. Helens.

2. Appalachian Mountains: The Appalachian Mountains are a vast mountain range that extends from eastern Canada down to central Alabama. They are one of the oldest mountain ranges in the world and offer a diverse range of landscapes and ecosystems.

3. Rocky Mountains: The Rocky Mountains, or simply the Rockies, are a major mountain range that spans over 3,000 miles from British Columbia in Canada to New Mexico in the southwestern United States. This range is famous for its stunning peaks, including the highest peak in the contiguous United States, Mount Elbert.

4. Sierra Nevada Mountains: The Sierra Nevada is a mountain range located in eastern California and western Nevada. It is famous for its towering peaks, such as Mount Whitney, the highest point in the contiguous United States outside of Alaska.

To identify these mountain ranges, you can refer to maps, atlases, or online resources that provide geographical information about the United States. You can search for "mountain ranges in the United States" or use specific state or region names in your search to get more targeted results.