Question: which visionary leader, and a great diplomat. was the legendary Crow chief of Little People of the Pryor Mountains 

Context paragraphs:
Pretty Eagle: Chief Pretty Eagle (1846–1903) was a war chief, warrior, and diplomat of the Crow Nation.  He was born in 1840 near present-day Crow Agency in Montana to the Mountain Crow division of the Crow Indians, one of three major divisions that made up the nation.  During and after his lifetime he was known for his prowess as a war chief and his devotion to his people, often traveling to Washington D.C with Crow delegations to discuss and fight for Crow rights, including land rights.  During his life he had 19 wives, many of which were likely temporary marriages which did not last long.

Little People: Little People is a for children ages 6–36 months and to ages 3 and up, originally produced by Fisher-Price, Inc. in the 1960s as the Play Family People.  The current product line consists of playsets, mini-sets and accessories, books, CDs, VHS tapes, music cassette tapes, and DVDs focusing on various configurations of nine characters named Eddie, Sarah Lynn, Maggie, Michael, Sonya Lee, Tessa, Mia, Koby and Sofie.  Mattel reports that since the brand's launch, over 2-billion Little People figures have been sold in over 60 countries.  In 2016, Little People was inducted into the National Toy Hall of Fame.

Pryor Mountains National Forest: Pryor Mountains National Forest was established as the Pryor Mountains Forest Reserve by the U.S. Forest Service in Montana on November 6, 1906 by the U.S. Forest Service with 78732 acre .  It became a National Forest on March 4, 1907.  On July 1, 1908 it was combined with part of Yellowstone National Forest to establish Beartooth National Forest.  The name was discontinued.

Pryor Mountains: The Pryor Mountains are a mountain range in Carbon and Big Horn counties of Montana.  They are located on the Crow Indian Reservation and the Custer National Forest, and portions of them are on private land.  They lie south of Billings, Montana, and north of Lovell, Wyoming.

Pryor Mountains Wild Horse Range: The Pryor Mountains Wild Horse Range is a refuge for a historically significant herd of free-roaming Mustangs, feral horses colloquially called "wild horses", located in the Pryor Mountains of Montana and Wyoming in the United States.  The range has an area of 39650 acre and was established in 1968 along the Montana–Wyoming border as the first protected refuge dedicated exclusively for Mustangs.  It was the second feral horse refuge in the United States.  About a quarter of the refuge lies within the Bighorn Canyon National Recreation Area.  A group of federal agencies, led by the Bureau of Land Management, administers the range.

Plenty Coups: In Crow called Alaxchiiaahush / Alaxchíia Ahú (″Many War Achievements″), he is better known by his English name as Plenty Coups (a translation of his name, coming from the word coup, meaning "counting many coups (war achievements"); 1848 – 1932) was the "Ashbacheeítche" (″Chief Of The Camp″, band chief) of the Mountain Crow Band (Ashalaho/, later: Awaxaawaxammilaxpáake) of the Crow Nation (Apsáalooke), a visionary leader, and a great diplomat.

Little People of the Pryor Mountains: The Little People of the Pryor Mountains (known as Nirumbee or Awwakkulé in the Crow language) are a race of ferocious dwarves in the folklore of the Crow Nation, a Native American tribe.  The Little People were also seen as imparting spiritual wisdom, and played a major role in shaping the destiny of the Crow People through the dreams of the legendary Crow chief, Plenty Coups.

Dryhead Country: Dryhead Country is a region in Carbon County and Big Horn County in southern Montana between Bighorn Canyon and the Pryor Mountains.  The locale was named after the piles of dry bison skulls that accumulated at the base of a local buffalo jump.  The Dryhead region starts near the Wyoming border in Bighorn Canyon National Recreation Area and extends northward into the Crow Indian Reservation.  Dryhead Creek drains a portion of the area, falling eastwards into Bighorn Canyon.  The semi-arid basin is one of the most remote areas in Montana.  The area is sparsely populated with isolated ranches.

Bighorn Canyon National Recreation Area: Bighorn Canyon National Recreation Area is a national park unit established by an act of Congress on October 15, 1966, following the construction of the Yellowtail Dam by the Bureau of Reclamation.  It straddles the border between Wyoming and Montana.  The dam, named after the famous Crow leader Robert Yellowtail, harnesses the waters of the Bighorn River by turning that variable watercourse into Bighorn Lake.  The lake extends 71 mi through Wyoming and Montana, 55 mi of which lie within the national recreation area.  About one third of the park unit is located on the Crow Indian Reservation.  Nearly one-quarter of the Pryor Mountains Wild Horse Range lies within the Bighorn Canyon National Recreation Area.

Pryor Mountain Mustang: The Pryor Mountain Mustang is a substrain of Mustang considered to be genetically unique and one of the few strains of horses verified by DNA analysis to be descended from the original Colonial Spanish Horses brought to the Americas by the Spanish.  They live on the Pryor Mountains Wild Horse Range located in the Pryor Mountains of Montana and Wyoming in the United States, and are the only Mustang herd remaining in Montana.  They are protected by the Wild and Free-Roaming Horses and Burros Act of 1971 (WFRHBA) and managed by the Bureau of Land Management (BLM), who has set the optimum herd number at 120 animals.  Genetic studies have revealed that the herd exhibits a high degree of genetic diversity and a low degree of inbreeding, and BLM has acknowledged the genetic uniqueness of the herd.  Pryor Mountain Mustangs are relatively small horses, exhibit a natural ambling gait, and domesticated Pryor Mountain Mustangs are known for their strength, sure-footedness and stamina.

Supporting paragraphs: Little People of the Pryor Mountains Plenty Coups
Answer: Plenty Coups