This unique historic place preserves and interprets one of America's most important locations in the history of westward expansion and Indian resistance. Established in 1834, Fort Laramie began as a fur trading post. By the 1840s, wagon trains rested and resupplied here, bound for Oregon, California and Utah. In 1849 as the Gold Rush of California drew more westward, Fort Laramie became a military post, and in 1876, Fort Laramie served as an anchor for military operations, communication, supply and logistics during the "Great Sioux War." Fort Laramie closed in 1890.

Led by Brigham Young, roughly 70,000 Mormons traveled along the Mormon Pioneer Trail from 1846 to 1869 in order to escape religious persecution. The general route is from Nauvoo, Illinois, to Salt Lake City, Utah, covering about 1,300 miles. The Mormon Pioneer Trail travels through five states over both public and private land.

Located in northwestern Wyoming, Grand Teton National Park protects stunning mountain scenery and a diverse array of wildlife. The central feature of the park is the Teton Range — an active, fault-block, 40-mile-long mountain front. The range includes eight peaks over 12,000 feet (3,658 m), including the Grand Teton at 13,770 feet (4,198 m). Seven morainal lakes run along the base of the range, and more than 100 alpine lakes can be found in the backcountry. Elk, moose, pronghorn, mule deer, and bison are commonly seen in the park. Black bears are common in forested areas, while grizzlies are occasionally observed in the northern part of the park. More than 300 species of birds can be observed, including bald eagles and peregrine falcons.

About 640,000 years ago a massive volcanic eruption spewed an immense volume of ash that covered all of the western U.S., much of the Midwest, northern Mexico and some areas of the eastern Pacific. This was one of many processes that shaped Yellowstone National Park--a region once rumored to be "the place where hell bubbles up." Geothermal wonders, such as Old Faithful, are evidence of one of the world's largest active volcanoes. These spectacular features bemused and befuddled the park's earliest visitors, and helped lead to the creation of the world's first national park.

The nearly vertical monolith known as Devils Tower rises 1,267 feet above the meandering Belle Fourche River. Once hidden below the earth's surface, erosion has stripped away the softer rock layers revealing Devils Tower. Known by several northern plains tribes as Bears Lodge, it is a sacred site of worship for many American Indians. The rolling hills of this 1,347 acre park are covered with pine forests, deciduous woodlands, and prairie grasslands. Deer, prairie dogs, and other wildlife are abundant. Proclaimed September 24, 1906 as the nation's first national monument by President Theodore Roosevelt.

The California Trail carried over 250,000 gold-seekers and farmers to the gold fields and rich farmlands of California during the 1840's and 1850's, the greatest mass migration in American history. Today, more than 1,000 miles of trail ruts and traces can still be seen in the vast undeveloped lands between Casper Wyoming and the West Coast, reminders of the sacrifices, struggles, and triumphs of early American travelers and settlers. More than 240 historic sites along the trail will eventually be available for public use and interpretation. The trail passes through the states of Missouri, Kansas, Nebraska, Colorado, Wyoming, Idaho, Utah, Nevada, Oregon, and California.

Bighorn Lake extends approximately 60 miles through Wyoming and Montana, 55 miles of which are held within spectacular Bighorn Canyon. The Recreation Area is composed of 70,000+ acres, which straddles the northern Wyoming and southern Montana borders. There are two visitor centers and other developed facilities in Fort Smith, Montana and near Lovell, Wyoming. The Afterbay Lake below the Yellowtail Dam is a good spot for trout fishing and wildlife viewing for ducks, geese and other animals. The Bighorn River below the Afterbay Dam is a world class trout fishing area. Bighorn Canyon National Recreation Area is a lesser known treasure waiting to be discovered. It boasts breath-taking scenery, countless varieties of wildlife, and abundant recreational opportunities, such as boating, fishing, ice fishing, camping, and hiking. Bighorn Canyon offers visitors what few other National Park areas can, that of solitude, serenity, and beauty.

Located near Kemmerer, Fossil Butte National Monument is a 50-million year old lake bed and one of the richest fossil localities in the world. Recorded in limestone are dynamic and complete paleoecosystems that spanned two million years. Preservation is so complete that it allows for detailed study of climate change and its effects on biological communities. Visitors discover that this resource displays the interrelationships of plants, insects, fishes, reptiles and mammals, like few other known fossil sites. The relevance and challenge of study and preservation of this ancient ecosystem are equal to those of a modern ecosystem. The surface topography of Fossil Butte is now covered by a high cold desert. Sagebrush is the dominant vegetation at the lower elevations, while limber pine and aspen occur on the slopes. Pronghorn, Mule deer and a variety of birds are commonly seen. Moose, elk and beaver are sometimes observed.

The Pony Express National Historic Trail was used by young men on fast paced horses to carry the nation's mail across the country, from St. Joseph, Missouri to Sacramento, California, in the unprecedented time of only ten days. Organized by private entrepreneurs, the horse-and-rider relay system became the nation's most direct and practical means of east-west communications before the telegraph. Though only in operation for 18 months, between April 1860 and October 1861, the trail proved the feasibility of a central overland transportation route, and played a vital role in aligning California with the Union in the years just before the Civil War. Most of the original trail has been obliterated either by time or human activities. Along many segments, the trail's actual route and exact length are matters of conjecture. However, approximately 120 historic sites may eventually be available to the public, including 50 existing Pony Express stations or station ruins.

Located at the heart of the Greater Yellowstone Ecosystem, the Rockefeller Parkway connects Grand Teton and Yellowstone National Parks. The late conservationist and philanthropist John D. Rockefeller, Jr. made significant contributions to several national parks including Grand Teton, Acadia, Great Smoky Mountains, and Virgin Islands. In 1972 Congress dedicated a 24,000 acre parcel of land as John D. Rockefeller, Jr. Memorial Parkway to recognize his generosity and foresight. The parkway provides a natural link between the two national parks and contains features characteristic of both areas. In the parkway, the Teton Range tapers to a gentle slope at its northern edge, while rocks born of volcanic flows from Yellowstone line the Snake River and form outcroppings scattered atop hills and ridges.

As the harbinger of America's westward expansion, the Oregon Trail was the pathway to the Pacific for fur traders, gold seekers, missionaries and others. Beginning in 1841 and continuing for more than 20 years, an estimated 300,000 emigrants followed this route from Independence, Missouri to Oregon City, Oregon on a trip that took five months to complete. The 2,170 mile long trail passes through Missouri, Kansas, Nebraska, Wyoming, Idaho and Oregon.