The Centennial Farm and Ranch program is looking for families who’ve been growing our food awhile...a long while. History Colorado is a joint effort between the Colorado historical society and the Colorado Department of Agriculture. Historical planner Erica Duvic (Do-Vick) says they want to honor families of farms and ranches that have been a working farm or ranch for 100 years...or more. The deadline is coming up to submit a farm or ranch for consideration. May 31st is the date you must have the info to them by. You can submit with a postmarked application by the 31st, or submit by e-mail using the information on the website.