White Deer Run of York/Mt. Zion is looking for a Counselor. Are you ready to jump into an exciting career opportunity that will provide an opportunity to save lives while feeling challenged and professionally enriched on a daily basis? White Deer Run Behavioral Health System is one of the leading providers of treatment for drug and alcohol addiction in Pennsylvania. The White Deer Run philosophy simply states that each patient will be treated as an individual, receiving treatment plans tailored to their specific needs.