Old Main On September 27, 1886, the cornerstone of Old Main was laid, marking the beginning of the University of Wyoming. The stone is inscribed
Domi Habuit Unde Disceret, which is often translated, "He need not go away from home for instruction." The following year, the first class of 42 men and women began their college education. For the next decade, the building housed classrooms, a library, and administration offices. The style of Old Main set a precedent for all future university buildings. The main stone is rough-cut sandstone from a quarry east of Laramie, and the trim stone is smooth Potsdam Sandstone from a quarry near Rawlins. Old Main was supposed to be a monumental structure, and it was designed to be symmetrical, with a prominent central spire as the focal point. The building was also meant to reflect the character of Wyoming, and the rough stone and smooth trim represented the progressing frontier. The design of Old Main had a lasting effect on university structures, most visible in the use of a sandstone façade on nearly every building. In 1916, the university removed the central spire because of structural concerns. The size of the auditorium was reduced during a 1936 renovation. In 1949, the university thoroughly remodeled the building and completely removed the auditorium and exterior stairs. At that time, it officially became known as Old Main, and the name was carved above the east entrance. Old Main houses university administration, including the president's office and the boardroom where the trustees often meet.
Prexy's Pasture Prexy's Pasture is a large grassy area located within a ring of classroom and administrative buildings and serves as the center mall of the campus. The name is attributed to an obscure rule that the university president, or "prexy", is given exclusive use of the area for livestock grazing. During the administration of
Arthur G. Crane, the name "Prexy's Pasture" was formally declared. Prexy's, as it is often called today, is also known for the unique pattern formed by concrete pathways that students and faculty use to cross it. When the University of Wyoming first opened its doors in
1887, Prexy's Pasture was nothing more than an actual pasture covered in native grasses. The
football team played their games there until 1922, when
Corbett Field opened at the southeast corner of campus. Over time, as the needs of the university have changed, the area has been altered and redesigned. The original design was established in 1924, and in 1949, the area was landscaped with
blue spruce and
mugo pine. In February 1965, the board of trustees decided to construct the new science center on the west side of Prexy's Pasture. The board president, Harold F. Newton, who was concerned about the location, leaked the decision to the local press. The uproar that followed caused the board to decide on a new location for the science center and resulted in a new state statute making it necessary for any new structure built on the pasture to receive legislative approval. The statue known as
University of Wyoming Family was installed in 1983 by UW professor
Robert Russin in anticipation of the centennial celebration. In the summer of 2004, Prexy's Pasture was remodeled as the first step in a two-part redesign project. The first step involved removing the asphalt roadway that circled the pasture and replacing it with concrete walkways to make the area a walking campus, as recommended by the 1966 and 1991 campus master plans. The grassy area was also increased, and new lampposts were installed for better lighting. The second phase of the project involved the construction of a plaza at each corner, featuring trees and rocks styled after the rocky outcrops of nearby
Vedauwoo. In addition to its primary use by students travelling to and from classes or socializing, the area is host to campus
barbecues and fall welcome events.
Wyoming Union In September 1937, the university obtained a
Public Works Administration loan during the
Great Depression for $149,250 for construction of a student union. On March 3, 1938, ground was broken and construction began on what would become the Wyoming Union. Many students were involved in the construction, and twenty-five students were trained to be stone-cutters. From the beginning, the union housed an assortment of student needs and activities. The formal and informal social needs were met by including a
ballroom, banquet room, lounges, and game rooms. It also contained offices for
student government, committees, organizations, and publications, to help meet the political and organizational needs of the student population. Lastly, a student store, post office, and
bookstore completed the design. The original design has been modified several times to accommodate changing needs and a growing student population. The first addition was completed in January 1960. This section, added to the northeast of the original structure, expanded the ballroom, made a lounge area and senate chambers adjacent to the ballroom, created the main lobby and
breezeway, and provided a larger food area called The Gardens. In 1973, an addition to the north was completed to make a
food court, add more space for the bookstore, and create additional offices. Also, parts of the original building were remodeled to create the Campus Activities Center, an art gallery, and a ticket outlet. In 2000, the Wyoming Union underwent extensive renovation. The $12 million project moved the food court to the main level, expanded the bookstore to the lower level, and revitalized the look and feel of the interior.
Ross Hall Ross Hall was built in 1959 and first used as a women's dormitory. In 1975, Ross Hall was converted to academic offices. It is located on the south side of Prexy's Pasture and is named after
Nellie Tayloe Ross, Wyoming's and the nation's first woman governor, elected in 1924. There is a brass plaque relief of Nellie Ross in Ross Hall. She was married to
William B. Ross, the
12th governor of Wyoming, who died in office. In 2000, on Ross Hall's fourth floor, the university installed the ''Wyoming Press Association's Newspaper Hall of Fame'' wall photos. In 2014, the Rendezvous Cafe open in the lobby.
Half Acre Gym The
Half Acre Gym facility was constructed in 1925 to house the
National Guard Armory of
Laramie, as well as the athletic programs, until the field house opened in 1951. In order to fund this project, the university received a $100,000 gift from the Wyoming State Legislature, designated to be used for new buildings, such as a library, the gymnasium and armory, a power plant, an engineering building, and an expansion of the Hoyt Hall dormitory. The original structure occupied half an acre (), hence the name "Half Acre Gym". It was one of the largest facilities of its type at the time. The building has undergone several renovations to increase its size and structural safety. In 2012, the university announced a $27 million renovation to begin in the Spring of 2013 and be completed by the Fall of 2014. Groathouse Construction, a local construction management firm, carried out the project in two phases to allow maximum use of the facility while it was under construction. Phase One would consist of the demolition and recreation of the east portion of the building. Phase Two would include the reopening of the east portion and the closure and construction of the west portion, which is the historical section of the building. Throughout the renovation, the university hoped to keep and incorporate as much of the historical structure and facade as possible. The improvements included elevators, added classrooms, a space for athletic training, new racquetball courts, a climbing wall for
Bouldering, a dance studio, a jogging/walking track, and new locker rooms with access to the pool.
Coe Library The original library at the University of Wyoming consisted of 300 books and was located in Old Main. In 1923, the library was moved to the new Aven Nelson Memorial Building. With the 1950s came a larger student population and a greater push for America to excel academically. These factors contributed to the decision by the board of trustees that it was necessary to construct a new library. However, in 1951, the state legislature rejected the funding request.
William Robertson Coe, a financier and philanthropist, came to the aid of president Humphrey in 1954 by contributing $750,000 in securities to the university. The trustees called the grant "one of the most outstanding contributions that has ever been made to the perpetuation of the American heritage" and assured Coe that the building would be "appropriately named". In 1955, the state legislature matched the Coe grant for an overall amount of $1.5 million. Laramie architects Eliot and Clinton Hitchcock, whose father had designed the Aven Nelson Memorial Building, teamed up with the Porter and Porter firm in
Cheyenne to design the new library. Their modular design was popular at the time and they intended to make the space very functional. The layout provided room for over 500,000 books and seating for at least 900 students. In May 1956, one year after the death of Coe, ground was broken and construction began on the building. The William Robertson Coe Library was finished in time for the Fall 1958 semester. In 1979, the stack tower was completed. This structure, designed by Kellogg and Kellogg of Cheyenne and Rock Springs, Wyoming, almost doubled the shelf space of the original Coe Library. The most recent renovation of the library was completed in the fall of 2009 and officially dedicated on November 19, 2009. Hinthorne Mott Architects designed the new wing, referred to as Coe East, which added to the library. The addition was part of a larger, $50 million project to modernize the library by integrating technology and information. The renovation created an additional 20 group study rooms, space for 180 computer terminals, and features art by
James Surls.
Berry Biodiversity Conservation Center The Berry Biodiversity Conservation Center was added to the University of Wyoming campus in January 2012. This building, which focuses on the study of biodiversity, is dedicated to Robert and Carol Berry, who gifted it to the University. The cost of the building was $15 million. It has three floors and 40,000 square feet with labs and an auditorium. The building also faculty offices, a teaching lab, display areas, public meeting areas, and a garden on the roof.
Housing As of September 2025, the university has six residence halls and four apartment complexes. Four residence halls, Orr, White (the second tallest building in Wyoming), Downey, and McIntyre, are connected together via the
Washakie Dining Center, which contains a now closed dining hall and other student services. The two other residence halls are North and South halls which were constructed in 2025 and 2026, respectively. Starting in Fall 2026, Orr Hall will house upperclassmen. Only McIntire, White, North, and South halls currently house students, primarily freshmen. North Hall also contains a dining facility, which replaced Washakie Dining Center. All incoming freshmen are expected to live in the residence halls during their first year, with some exceptions. Each of the residence halls, other than North and South halls, is named after an influential administrator or faculty member. Downey Hall is an eight-story dormitory located southwest of the Washakie Dining Center and is named after
June Downey. Located west of the Washakie Dining Center is White Hall, a dormitory named after Laura Amanda White. At twelve stories and 146 feet, White Hall is the second tallest building in the state of Wyoming, two feet shorter than the Wyoming Financial Center in Cheyenne. McIntyre Hall, named after Clara Frances McIntyre, is located east of the Washakie Dining Center. This twelve-story building underwent extensive renovations in 2004 and 2005. Just northeast of McIntyre Hall is the eight-story Orr Hall, named after Harriet Knight Orr. From 2005 to 2006, Orr Hall also underwent extensive renovations to modernize its living space. The University Apartments are located east of War Memorial Stadium. They are available on a first-come, first-serve basis to all University of Wyoming students above freshman standing. There are apartment units in a variety of layouts in the River Village, Bison Run, Landmark, and Spanish Walk apartment complexes.
Museums American Heritage Center The
American Heritage Center, located in the Centennial Complex, is an extensive repository of manuscripts, photographs, artworks, movies, audio recordings, and other items. It is one of the largest non-governmental archives west of the
Mississippi River. Officially established in 1945, it now contains over of historic documents and materials. It is also home to the Toppan Library, which contains over 50,000 rare books. Because of its size, the AHC has many collecting areas. It features Wyoming and Western history from the early nineteenth to the twenty-first century; women's suffrage; transportation history, including railroad history (especially the transcontinental railroad) as well as aviation; and mineral, coal, and oil extraction. It has extensive entertainment collections in theater, radio and television, film, music, Hollywood (from Jack Benny and Barbara Stanwyck to Stan Lee), politics and journalism, authors, composers, and artists.
University of Wyoming Art Museum The University of Wyoming Art Museum is also located in the Centennial Complex on East Willet Drive. The museum's collections include art in many media from around the world, including: European and American paintings, prints, sculpture and drawings; 18th and 19th century Japanese
Ukiyo-e prints; 15th through 19th century
Persian and
Indian miniature paintings; 20th century
Haitian art; 20th century Japanese
netsuke; 20th century and contemporary photography; and
Rapa Nui, African, and Native American artifacts. Artists in the collection include
Thomas Hart Benton,
Ralston Crawford,
Jun Kaneko,
Hung Liu,
Aristide Maillol,
Joan Miró,
Richard Misrach,
Robert Rauschenberg and
Paul Signac. The museum also hosts changing exhibits of art from around the world. The Centennial Complex was designed by
Antoine Predock and opened in 1993. In collaboration with the
College of Law, the museum conducts research and instruction on the
Native American Graves Protection and Repatriation Act (NAGPRA) and legal issues surrounding the repatriation of human remains.
University of Wyoming Geological Museum The University of Wyoming's Geological Museum houses a collection of fossils and minerals with special focus on the history of Wyoming. When the University of Wyoming was founded, the museum was essentially the small personal collection of Professor J.D. Conley. In 1893, Wilbur Knight, who was hired as a professor of mining and geology, took over as the museum curator. The museum moved to the Hall of Science in 1902 and continued to expand. By the time the collection was moved to its current location in 1956, Knight's son Samuel Howell Knight had made the university's Geology Department well known around the country. Samuel Howell Knight acquired many of the exhibits and paintings that are still on display, including the copper
Tyrannosaurus at the entrance, the initial mounting of the
Apatosaurus skeleton centerpiece, and the
terracotta Stegosaurus and
Triceratops panels. One of the most famous exhibits at the museum is the
Allosaurus known as "
Big Al". It was featured in the BBC documentary
The Ballad of Big Al. The University of Wyoming Geological Museum has also received coverage from
National Geographic,
CNN,
Earth Magazine,
Walter Cronkite, and
NBC Nightly News with
Tom Brokaw, and it has been shown on many dinosaur programs. On June 30, 2009, the museum was closed to meet state budget cuts. Following this controversial decision, an endowment fund was set up to support the museum. After substantial infrastructure upgrades, the museum reopened to the public on January 12, 2013 and resumed its regular hours with free admission. Some exhibits, like the Late Cretaceous display, have been completed, while others are still under renovation.
University of Wyoming Anthropology Museum The University of Wyoming Anthropology Museum is operated by the Anthropology Department and is located in the Anthropology Building at 12th and Lewis Streets. Exhibits are spread throughout three floors of the building. Displays include early humans, the
Colby Mammoth Site,
Vore Buffalo Jump, and other Wyoming archaeology sites.
University of Wyoming Insect Museum The University of Wyoming Insect Museum is a research museum located in the Agriculture Building. Displays include mounted insects, a small zoo with living insects, and an interactive discovery cabinet. ==Academics==