User: Based on the paragraph below, which are the most and least popular National Parks in the US?
Assistant: If we use number of visitors as a proxy for popularity then The Great Smoky Mountains National Park with over 14 million visitors in 2021 would rank as the most popular National Park. The least visited National Park is the Gates of the Arctic National Park and Preserve. Its lower visitation rate may have more to do with its remoteness than the Park's popularity.