The Yellowstone River Compact Commission is an interstate commission that was created in 1950 by the ratification of the Yellowstone River Compact. The Commission was created to administer the provisions of the Compact as between the states of Montana and Wyoming, and it is composed of one representative from the state of Wyoming and one representative from the state of Montana, selected by the governors of the states, and one representative selected by the Director of the United States Geological Survey. [1]
Wyoming is a landlocked state in the Mountain West subregion of the Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the south. With a population of 576,851 in 2020, Wyoming is the least populous state despite being the 10th largest by area, with the second-lowest population density after Alaska. The state capital and most populous city is Cheyenne, which had a population of 65,132 in 2020.
Yellowstone National Park is a national park of the United States located in the northwest corner of Wyoming and extending into Montana and Idaho. It was established by the 42nd U.S. Congress through the Yellowstone National Park Protection Act and signed into law by President Ulysses S. Grant on March 1, 1872. Yellowstone was the first national park in the U.S. and is also widely held to be the first national park in the world. The park is known for its wildlife and its many geothermal features, especially the Old Faithful geyser, one of its most popular. While it represents many types of biomes, the subalpine forest is the most abundant. It is part of the South Central Rockies forests ecoregion.
Park County is a county in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 29,624. The county seat is Cody.
Billings is the most populous city in the U.S. state of Montana, with a population of 117,116 as of the 2020 census. Located in the south-central portion of the state, it is the seat of Yellowstone County and the principal city of the Billings Metropolitan Area, which had a population of 184,167 in the 2020 census. With one of the largest trade areas in the United States, Billings is the trade and distribution center for much of Montana east of the Continental Divide. Billings is also the largest retail destination for much of the same area. The Billings Chamber of Commerce claims the area of commerce covers more than 125,000 square miles (320,000 km2). In 2009, it was estimated to serve over 500,000 people.
The Absaroka Range is a sub-range of the Rocky Mountains in the United States. The range stretches about 150 mi (240 km) across the Montana–Wyoming border, and 75 mi (120 km) at its widest, forming the eastern boundary of Yellowstone National Park along Paradise Valley, and the western side of the Bighorn Basin. The range borders the Beartooth Mountains to the north and the Wind River Range to the south. The northern edge of the range rests along I-90 and Livingston, Montana. The highest peak in the range is Francs Peak, located in Wyoming at 13,153 ft (4,009 m). There are 46 other peaks over 12,000 ft (3,700 m).
In the United States, an interstate compact is a pact or agreement between two or more states, or between states and any foreign sub-national government.
The Bighorn River is a tributary of the Yellowstone, approximately 461 miles (742 km) long, in the states of Wyoming and Montana in the western United States. The river was named in 1805 by fur trader François Larocque for the bighorn sheep he saw along its banks as he explored the Yellowstone.
The Yellowstone River is a tributary of the Missouri River, approximately 692 miles (1,114 km) long, in the Western United States. Considered the principal tributary of upper Missouri, via its own tributaries it drains an area with headwaters across the mountains and high plains of southern Montana and northern Wyoming, and stretching east from the Rocky Mountains in the vicinity of Yellowstone National Park. It flows northeast to its confluence with the Missouri River on the North Dakota side of the border, about 25 miles (40 km) west of Williston.
The Madison River is a headwater tributary of the Missouri River, approximately 183 miles (295 km) long, in Wyoming and Montana. Its confluence with the Jefferson and Gallatin rivers near Three Forks, Montana forms the Missouri River.
The Clarks Fork of the Yellowstone River is a tributary of the Yellowstone River, 150 mi (241 km) long in the U.S. states of Montana and Wyoming.
U.S. Route 191 is a north–south highway in the Western United States and a spur of parent route U.S. Route 91 that has two segments. The southern segment runs for 1,102 miles (1,773 km) from Douglas, Arizona on the Mexican border to the southern part of Yellowstone National Park. The northern segment runs for 442 miles (711 km) from the northern part of Yellowstone National Park to Loring, Montana, at the Canada–US border. Unnumbered roads within Yellowstone National Park connect the two segments. The highway passes through the states of Arizona, Utah, Wyoming, and Montana.
The United States District Court for the District of Wyoming is the federal district court whose jurisdiction comprises the state of Wyoming and those portions of Yellowstone National Park situated in Montana and Idaho; it is the only federal court district that includes portions of more than one state, creating a possible "Zone of Death" where it would be difficult to prosecute crimes. The court has locations in Cheyenne and Casper.
The Gallatin National Forest is a United States National Forest located in South-West Montana. Most of the Custer-Gallatin goes along the state's southern border, with some of it a part of North-West Wyoming.
The Yellowstone cutthroat trout is a subspecies of the cutthroat trout. It is a freshwater fish in the salmon family. Native only to a few U.S. states, their original range was upstream of Shoshone Falls on the Snake River and tributaries in Wyoming, also across the Continental Divide in Yellowstone Lake and in the Yellowstone River as well as its tributaries downstream to the Tongue River in Montana. The species is also found in Idaho, Utah and Nevada.
Eagle Peak is a mountain in the Absaroka Range in the U.S. state of Wyoming and at 11,372 feet (3,466 m) is the highest point in Yellowstone National Park. It is located about 6 miles (9.7 km) east of the southeast arm of Yellowstone Lake.
The 1959 Hebgen Lake earthquake occurred in the western United States on August 17 at 11:37 pm (MST) in southwestern Montana.
There is evidence of prehistoric human habitation in the region known today as the U.S. state of Wyoming stretching back roughly 13,000 years. Stone projectile points associated with the Clovis, Folsom and Plano cultures have been discovered throughout Wyoming. Evidence from what is now Yellowstone National Park indicates the presence of vast continental trading networks since around 1,000 years ago.
U.S. Route 287 (US 287) is a 281.183-mile (452.520 km) north-south U.S. Numbered Highway in Montana, United States, that connects Yellowstone National Park's West Entrance iwth to U.S. Route 89 in Choteau, about 100 miles (160 km) south of the Canadian border.
The following works deal with the cultural, political, economic, military, biographical and geologic history of pre-territorial Wyoming, Wyoming Territory and the State of Wyoming.
The Yellowstone River Compact is an interstate compact that was entered into by Montana, North Dakota, and Wyoming and ratified in 1950 for the purpose of providing for an equitable division and apportionment of the waters of the Yellowstone River and its tributaries, encouraging mutually beneficial development and use of the Yellowstone River Basin's waters, and furthering intergovernment cooperation between the three states. The Compact became effective in 1951 and provided for the creation of the Yellowstone River Compact Commission to administer the provisions of the Compact as between the states of Montana and Wyoming.