From the website:
Elections Our office is open Monday through Friday, 8am - 5pm except holidays Office Location 200 W. Oak Street, Fifth Floor Fort Collins, CO 80521 Mailing address Larimer County Elections PO Box 1547 Fort Collins, CO 80522-1547 Phone 970 498-7820 Fax 970 498-7847 Fax Mail-in Applications 970 498-7845 General inquiries elections larimer.org Elections Manager