Though a primary purpose of K-12 education in the United States is to prepare students to meet the economic demands of the country, there is currently a major shortage of workers to fill the open positions in the fields of science, technology, engineering, and math (STEM). This shortage is only expected to grow in the coming decade unless a significant number of students choose to pursue STEM careers. Some authors have identified the approximately 1.5 million underserved rural, high-potential students as an untapped population representing future STEM workers. However, school counselors, who oversee most of the career development in K-12 education, currently lack a strong understanding of how to promote STEM college and career readiness with rural, gifted students. This paper shares the results of a study that examined whether factors such as academic potential, personal traits, or social engagement have an impact on the early career development of gifted students from under-served rural schools. Particularly, the study examined whether a STEM extra-curricular program--STEM Excellence and Leadership--influenced the career development of the rural, gifted middle school student participants. Results indicate that perceived social engagement had the most significant impact on the career development of rural, gifted middle school students, and that the extra-curricular program was helpful in developing their career expectations and goals. The final section of this paper shares important lessons for practicing school counselors and school counseling preparation programs. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]