Yellowstone
Yellowstone spans over 2.2 million acres (over 3,400 square miles) in three states–Montana, Idaho, and Wyoming. It was established as a National Park in 1872. In fact, the concept of a national park anywhere in the world started with Yellowstone. For more, see this blog April/May 2014. The first photo is Mammoth Hot Springs and is dated ca. 1885.
Glacier
Glacier National Park is located in northwest Montana. Its northern border is also the US/Canadian border. It spans about 1 million acres (1,600 square miles) and was established in 1910. The first photo shows Two Medicine Lake in 1927, and the third shows Many Glaciers Hotel in 1934.
Mount Rainier
One of three national parks in Washington, Mount Rainier National Park is located in the south-central portion of the state, near Tacoma. It spans 236 million acres (370 square miles) and was designated a National Park in 1899. The first photo is dated 1912.
Yosemite
Yosemite National Park is located in the east-central portion of California, near Mariposa. It spans 236 million acres (370 square miles) and was established in 1890. For more information, see this blog June 2013. The first photo is dated 1927, and the third shows The Fallen Monarch sequoia in Mariposa Grove in the park in 1891.
