We just learned about the Oregon Coast Range.
Another mountain range in the Pacific Coast Belt of the North American Cordillera is the Calapooya Mountains in Oregon.
These mountains have a lot of forests, and long ago they acted like a wall that people had trouble getting around, so they built the Applegate Trail to help travelers get to the gold mines that were in Northern California.
(from: wikipedia - calapooya mountains)
Kid Facts - Blast from the past: Lake Erie