Grand Teton and Yellowstone national parks made this year’s list of the 10 most visited national parks, according to National Park Service statistics.

Combined, the two parks welcomed roughly 5.5 million visitors in 2008, or about 2 percent of the National Park Service’s total visitation spread out among 360 parks, parkways, memorials, national monuments and other National Park Service units. The Blue Ridge Parkway in North Carolina and Virginia was the busiest national park unit overall, with more than 16 million visitors for the year.

Among national parks, Yellowstone came in fifth, with 3.06 million visitors, and Grand Teton ninth, with 2.49 million visitors. Great Smoky Mountains National Park in Tennessee and North Carolina took the No. 1 spot, with more than 9 million visitors, followed by Grand Canyon, Yosemite and Olympic national parks.

Both Wyoming parks dropped slightly in the rankings. In 2007, Yellowstone narrowly edged out Olympic for the fourth spot and Grand Teton beat out Cuyahoga Valley National Park for the eighth busiest park.

For 2008, Yellowstone and Grand Teton reported slight drops in visitation compared with 2007. Yellowstone visitation fell from 3.15 million to 3.06 million, a 2.7 percent decline, while Grand Teton went from 2.58 million to 2.48 million, a difference of almost 4 percent.