Study co-author Ivan Rudik said air quality warnings issued by parks and other government agencies may be causing the visitation drop.
Mesa Verde National Park
The National Park Service cannot keep noise out, but it can measure it.
Park rangers have happened upon several instances of vandalism and graffiti.
A research professor at the University of Arizona has found the ancient inhabitants of the Mesa Verde area used complex geometry to build a temple — the first sign of such sophisticated geometrical skills in North America.
Spending was up by about 8 percent and visits rose by 5.5 percent over 2015, a new report says.
- If approved, entrance fees to the park would rise from $15 to $20 per vehicle during the summer season.Read more
The structural integrity of Spruce Tree House, one of the Southwest’s most popular archeological attractions, is a particular worry.
- A new report from the National Park Service shows that visitor spending also supported 814 jobs in the area.Read more
A new exhibit at History Colorado Center in Denver showcases the art and traditions of the Mesa Verde inhabitants once thought lost forever.