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1111 South 4th StreetP. O. Box 328Lamar CO 810527193363244Proudly Serving Prowers Baca Kiowaand Eastern Bent Counties in Colorado Home News Employment Administration Programs Meet the Team Affiliations Documentation Upcoming Events Contact Our Board More SOUTHEASTERN DEVELOPMENTAL SERVICES Southeastern Developmental Services SDS is a communitybased nonprofit organization that advocates for and with people with intellectual and developmental disabilities IDD and serves them and their families. We work tirelessly to uphold our vision that every individual and family living with IDD in the Southeast Colorado has access to the information advocacy and skills they need to support their full inclusion and participation in the community throughout their lifetimes.