Deborah Lemmer has over 24 years of experience in education. She has taught early childhood, elementary and middle school grades. She trained and worked as a Reading Recovery Teacher Leader, training teachers throughout Northeastern Colorado. She has served as Literacy Specialist and Curriculum Designer. For the last 16 years, she has provided leadership in the role of elementary principal.

Deborah has been the principal for Renaissance Expeditionary Learning Outward Bound Elementary Magnet School since 2006 and is inspired by and dedicated to the vision and mission of this unique school.

Deborah holds a Bachelor’s Degree in Elementary Education from Regis University and a Master’s Degree in Curriculum and Instruction from the University of Nebraska.

Deborah Lemmer



9:00AM - 4:30PM (Middle School)

9:05AM-4:25PM (High School)


8:30AM - 4:30PM



3954 TRAIL BOSS LANE • CASTLE ROCK, CO 80104 • • 720.689.6120

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Douglas County School District Nondiscrimination Notice:

The Douglas County School District does not discriminate on the basis of race, color, sex, sexual orientation, gender identity/expression, religion, national origin, ancestry, creed, age, marital status, genetic information, or physical characteristics, disability or need for special education services in admissions, access to, treatment of, or employment in educational programs or activities.

The School’s Compliance Officer is Amy Stuart, Executive Director/Head of School, 3954 Trail Boss Ln, Castle Rock, Colorado,, 720.689.6120.

Complaint procedures have been established for students, parents, employees and members of the public.