Alberta's pavilion took the form of an amphitheater for musical performers, which was partially enclosed by a man-made hill. Inside the hill was a theatre showing environmental films.
The British Columbian pavilion consisted of three partially-buried, interlocked hexagons. Inside the pavilion was a gallery with works by local artists including Haida Indian, Bill Reid. A totem pole was carved outside the pavilion during the summer.
Idaho's pavilion was shaped like a frontier cabin. Inside were four-by-ten-foot shadow boxes with slides dedicated to recreation, natural resources, agriculture and livestock and industry. Other exhibits included a section from a 500-year old Ponderosa Pine and a 77-pound silver ingot.

Artist's conception of the Montana Pavilion (colors added).
Four paintings and several bronzes by artist Charles Russell were the highlight of Montana's pavilion. Also on display was a collection of minerals, gems and precious metals. Three five-minute films took viewers on a trip to all of Montana's "five states within a state"—Glacier National Park, the cowboy country of north central Montana, the mountains and rivers of northeastern Montana, the Indian country of southeastern Montana (site of Custer's last stand) and and the gem country of southwestern Montana.


Visitors could play slot machines which displayed slides of Nevada's beauty rather than lemons, cherries and the like, but which paid off in prizes including a Las Vegas vacation.
Oregon contributed a multimedia slide show displaying the beauty of the state and how the government is dealing with environmental problems, most notably water and air pollution.
Washington had the largest pavilion of any state—and the only one meant to remain after the end of Expo. The first part of the pavilion was the 2,700-seat Opera House—which was used as a venue for performers rather than for more traditional displays. The Exhibition Hall contained the main part of the Washington Pavilion. In the lobby was an environmental game, played on eight film consoles. There was a film called About Time that told the story of man's partnership with nature from earliest time. An art exhibit featured 146 paintings by U.S. and Canadian artists.