The area around Bryce Canyon became a U.S. National Monument in 1923 and was designated as a national park in 1928. The park covers 56 square miles and receives relatively few visitors compared to Zion Canyon and the Grand Canyon, largely due to its remote location.

There are several roads in the park, but none penetrate far into the interior. The park features a network of hiking trails, although the size and remoteness means that it will usually take more than a weekend to get to the high country in the interior. The sights of the rain forest, with plants run riot and dozens of hues of green, are well worth the possibility of rain sometime during the trip, although months of July, August and September frequently have long dry spells.

An unusual feature of Olympic National Park is the opportunity for backpacking along the beach. The length of the coastline in the park is sufficient for multi-day trips, with the entire day spent walking along the beach. Although idyllic compared to toiling up a mountainside one must be aware of the tide; at the narrowest parts of the beaches, high tide washes up to the cliffs behind, blocking passage. There are also several promontories that must be struggled over, using a combination of muddy steep trail and fixed ropes.

Glacier National Park is located in the U.S. state of Montana, bordering the Canadian provinces of Alberta and British Columbia to the North and the Blackfeet Indian Reservation to the East. Glacier National Park contains two mountain ranges (sub-ranges of the Rocky Mountains), which are sometimes referred to as the southern extension of the Canadian Rockies. The park encompasses over 1 million acres, with 300 lakes (130 of which are definitively named), more than 1,100 different species of vascular plants, 400 species of moss and hundreds of species of animals.

Glacier National Park is dominated by mountains which were carved into their present shapes by the huge glaciers of the last ice age; these glaciers have largely disappeared over the last 15,000 years. Evidence of widespread glacial action is found throughout the park in the form of U-shaped valleys, glacial cirques, aretes and large outflow lakes radiating like fingers from the base of the highest peaks. Since the end of the ice ages, various warming and cooling trends have occurred.

Hawaii Volcanoes National Park, established in 1916, is a United States National Park located in the U.S. State of Hawaiʻi on the island of Hawaiʻi. It displays the results of hundreds of thousands of years of volcanism and a distinct , migration, and evolution—processes that thrust a bare land from the sea and clothed it with complex and unique ecosystemsAncient Hawaiian culture. Kīlauea, one of the world’s most active volcanoes, and Mauna Loa, the most massive, offer scientists insights on the birth of the Hawaiian Islands and visitors’ views of dramatic volcanic landscapes. In recognition of its outstanding natural values, Hawaiʻi Volcanoes National Park has been designated as an International Biosphere Reserve in 1980 and a World Heritage Site in 1987.

The park includes 1,348 square kilometres (520 sq mi) of land. Over half of the park is designated wilderness and provides unusual hiking and camping opportunities. The park encompasses diverse environments that range from sea level to the summit of the earth’s most massive volcano, Mauna Loa at 13,677 feet (4,169 m). Climates range from lush tropical rain forests, to the arid and barren Kaʻū Desert. Active eruptive sites include the main caldera of Kīlauea and a more active but remote vent called Puʻu ʻŌʻō. The main entrance to the park is from the Hawaii Belt Road. The Chain of Craters Road, as the name implies, leads past several craters from historic eruptions to the coast. It used to continue to another entrance to the park near the town of Kalapana, but that portion is now covered by a lava flow.

Yellowstone National Park, established by the U.S. Congress as a national park on March 1, 1872, is located primarily in the U.S. state of Wyoming, though it also extends into Montana and Idaho. The park was the first of its kind, and is known for its wildlife and its many geothermal features, especially Old Faithful Geyser, one of the most popular features in the park. It has many types of ecosystems, but the subalpine forest is dominant.

Yellowstone National Park spans an area of 3,468 square miles (8,980 square km), comprising lakes, canyons, rivers and mountain ranges. Yellowstone Lake is one of the largest high-altitude lakes in North America and is centered over the Yellowstone Caldera, the largest supervolcano on the continent. The caldera is considered an active volcano; it has erupted with tremendous force several times in the last two million years. Half of the world’s geothermal features are in Yellowstone, fueled by this ongoing volcanism. Lava flows and rocks from volcanic eruptions cover most of the land area of Yellowstone. The park is the centerpiece of the Greater Yellowstone Ecosystem, the largest remaining, nearly intact ecosystem in the Earth’s northern temperate zone.

Hundreds of species of mammals, birds, fish and reptiles have been documented, including several that are either endangered or threatened. The vast forests and grasslands also include unique species of plants.