how did early explorers perceive the Grand Canyon?

As a very large hole to find away around .

Jacob, this what I found out... Early European and American explorers of Grand Canyon and Colorado River were willing to go into "The Great Unknown" risking their lives to learn the canyon's secrets. They were the first to document the power of the Colorado River, understand the immense size of Grand Canyon, and share its beauty and danger with the world. Their adventures still inspire explorers today.

Geraldine, best not look down, that next step is a doozie.