Last year I went to Washington state and I visited Mount Rainier National Park, Olympic National Park, and North Cascades National Park. I enjoyed all three of them.
I just saw a Wikipedia page and was looking at the number of annual visitors for all of the U.S. national parks. I noticed that Olympic National Park got 3.4 million visitors last year and Mount Rainier got 1.4 million visitors. I was shocked to see that North Cascades only got 30 thousand visitors.
Why would North Cascades National Park receive so few visitors compared to Olympic and Mount Rainier? They are all about 2 hours away from Seattle. Not only that, but North Cascades National Park is free - it does not have an entrance fee, unlike Olympic and Mount Rainier, which makes it even more puzzling.
In fact, North Cascades National Park is the only national park in the contiguous United States that is not on an island to receive fewer than 150,000 visitors last year. Why is that?