Below are myriad ways to be involved and make a difference. Browse to find a compelling opportunity. Volunteer online now, or volunteer by mail to PO Box 1471, Greeley CO 80632. Call us at 970-351-7047. E-mail to office@weldcountydems.org, visit the office weekdays 10 am-3 pm at 810 9th Street, Suite 150, Greeley. 