Aurora is a Home Rule Municipality in the U.S. state of Colorado, spanning Arapahoe and Adams counties, with the extreme southeastern portion of the city extending into Douglas County. Aurora is one of the principal cities of the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area (Metro Denver). The city’s population was 325,078 in the 2010 census, which made it the third most populous city in the state of Colorado and the 54th most populous city in the United States. Aurora is Denver’s largest suburbs. Aurora’s growing population in recent decades has led to efforts for co-equal recognition with its larger neighbor.
The city of Aurora manages more than 100 parks, more than 6,000 acres of open space and natural areas, and six award-winning municipal golf courses (Aurora Hills, Meadow Hills, Murphy Creek, Saddle Rock, Springhill and Fitzsimons). Aurora also is home to several privately owned golf courses including Common Ground Golf Course, Heather Ridge Country Club, Heritage Eagle Bend Golf Club, John F. Kennedy Golf Course (a Denver city golf coarse, not Aurora) and Valley Country Club.
Star K Ranch, home to Aurora’s Morrison Nature Center, provides important habitat for wildlife. It has several trails for nature exploration, including access to the Sand Creek Greenway Trail. Jewell Wetland, a 50-acre (200,000 m2) wooded wetland, features trails, boardwalk/deck access into the wetland and a butterfly garden. Aurora Reservoir and Quincy Reservoir offer plenty of opportunities for outdoor water pursuits.
DeLaney Farm, site of Aurora’s famous historic round barn, has 130 acres (0.53 km2) of open space, trails with access to the High Line Canal, an organic garden managed by Denver Urban Gardens, and two structures on the National Register of Historic Places. The Plains Conservation Center, with 1,100 acres (4.5 km2) of native shortgrass prairie, hosts a variety of educational programs.
Aurora experiences a semi-arid climate and High-Desert Climate, with four distinct seasons and modest precipitation year-round. Summers range from mild to hot, with generally low humidity and frequent afternoon thunderstorms, and Aurora also averages about one dozen tornado warnings throughout tornado season, running from April–July.