Dual-enrollment (DE) science courses offer a way to strengthen the science, technology, engineering, and mathematics pipeline between high school and college. These courses offer high school students the opportunity to experience college science in a more supported environment, allowing them to adjust to the different academic and social demands of a college learning environment. Evidence suggests that the DE model may better prepare students to be academically successful in college both in terms of performance (e.g., GPA) and time to graduation (number of years it takes a student to graduate with a college degree). DE programs have many stakeholders and require advanced planning in order to be successful. This article describes the successful coordination and implementation of a DE geology program (consisting of two lecture and two lab courses). The lessons learned and challenges faced can provide insights to both high school and college instructors interested in organizing and implementing their own DE science programs.