Huckleberry Teen Health Program (HTHP), established in 1988 and located in San Rafael, California's Montecito Shopping Center, is a comprehensive health promotion and youth development program serving Marin County youth ages 12-21.  HTHP utilizes a number of strategies to reach youth: direct street outreach at locations where young people "hang out"; health education workshops offered in schools and community; counseling, support groups, and case management services; peer health educator trainings and delivery of on-site services in a teen friendly environment.

In collaboration with the Marin County Department of Health and Human Services, HTHP provides Teen Tuesday Health drop-in clinic every Tuesday afternoon from 1:30 PM to 4:30 PM, offering free health services to teenagers. These services include health education, pregnancy testing and options counseling, HIV and other STI testing, male and female exams, short-term counseling, and case management.

HTHP also facilitates the Youth Leaders in Progress (YLIP) group, which focuses on training young people to take an active role in preventing teen pregnancy and STIs in Marin County.  YLIP members are empowered to take leadership roles in their communities, conduct outreach and education for their peers, and after a year of training are eligible to apply for staff positions.