A national park in the western United States has spectacular rock formations, colorful hot springs, and large animals such as bison and wolves. The park has become a popular international tourist destination. Over the last 10 years, annual attendance in the park has increased by almost 150 percent. Why would a national park be considered a "common"

national park in the western United States with such unique and diverse attractions would be considered common for a few reasons:

1. Accessibility: National parks in the western United States are often easily accessible by major highways and airports, making them popular destinations for both domestic and international tourists.

2. Promotion: The park may have received significant promotion and marketing efforts from governmental agencies and tourism organizations, attracting more visitors each year.

3. Iconic attractions: The park's spectacular rock formations, colorful hot springs, and large animals like bison and wolves are iconic symbols of the American West, making it a must-see destination for many travelers.

4. Positive word of mouth: As more and more tourists visit the park and share their experiences through social media and travel blogs, word of mouth recommendations can further boost its popularity.

Overall, a national park with such unique and diverse attractions in a prime location in the western United States is bound to attract a large number of visitors and become a common tourist destination.