VALLEY — The deadline to apply for recognition in the Colorado Centennial Farms program has been extended through May 15.

Colorado farming and ranching families who are interested in the program can apply at: http://www.historycolorado.org/oahp/centennial-farms-how-apply. The Centennial Farms ceremony is held each year at the Colorado State Fair in Pueblo.

To earn recognition as a Centennial Farm or Ranch, a property must meet the following requirements:

• Farms or ranches must have remained in the same family continuously for 100 years or more.

• Property must be a working farm or ranch.

• Property must have a minimum of 160 acres—however, properties with fewer than 160 acres can qualify if they gross at least $1,000 in annual sales.

• Properties that have four or more well-maintained structures—which are at least 50 years old—are also eligible for a Historic Structures Award.

• Eligible owners must submit an application providing information about the history of their property and its buildings, demonstrate that the farm or ranch meets the program’s requirements, and submit photographs of their buildings if they are applying for a Historic Structures Award.