Final answer:
John Wesley Powell's experience in the Grand Canyon was one of exploration and discovery, while visitors today have the opportunity to experience the Canyon as tourists. Powell's knowledge and identification of geological features were groundbreaking at the time, but today visitors have a better understanding of the Canyon's features. Access to the Canyon has also changed significantly, with modern visitors enjoying easier access and a range of activities.
Step-by-step explanation:
John Wesley Powell's experience in the Grand Canyon was different from the experience that visitors have today in several ways:
- Exploration: Powell led the first boat trip through the Grand Canyon in 1869, so his experience was one of exploration and discovery. Visitors today have the opportunity to visit the Grand Canyon as tourists and enjoy the amenities and infrastructure that have been developed over the years.
- Knowledge: Powell was the first to identify the "Great Unconformity" between the rocks at the bottom of the Canyon and the tilted rocks in a section known as "Powell's Amphitheater." Today, visitors have the benefit of scientific knowledge and geological understanding to help them interpret the features of the Grand Canyon.
- Access: Powell's trip was a challenging and dangerous undertaking, with limited access to the Canyon. Today, visitors can easily access the Grand Canyon through various entrances and enjoy a range of activities such as hiking, camping, and guided tours.