“Thank you to everyone at Rimrock Foundation. You saved my life.”

Eliza R.

Rimrock, An Overview

Rimrock is nestled in the heart of the healthcare corridor in Billings.

We are the largest treatment center in the region, providing rehab services for adults with substance use, co-occurring, and mental health conditions. Rimrock views addiction as a whole person illness affecting an individual’s emotional, physical, spiritual and social well-being. Our programs are designed to help people find a balance in their life.


Rimrock offers a variety of services, including:

What We Treat

  • Substance Use Disorders
  • Co-Dependency
  • Co-Occurring Disorders
  • Mental Health Conditions
Business Hours:
8:00am- 5:00pm

Group times vary based on program.

We create opportunity for those impacted by addiction and mental illness through innovative, compassionate and life changing care.