The article describes the El Portal Latino Alzheimer's Project--a dementia-specific outreach and services program targeting Latino caregivers in the Los Angeles County area. The project is an example of an interorganizational community-based collaborative developed to provide an array of coordinated, ethnic-sensitive services to Latino dementia-affected adults and their family caregivers, using culturally specific outreach and services delivery strategies. Results of an evaluation of service utilization indicate a reduction in barriers to care and an increase in services utilization. Los Angeles County provides a natural urban laboratory to study the special needs and circumstances of older Latinos dealing with chronic and debilitating illnesses. Implications for social work practice are discussed.