For 20 years, we have worked to protect the Rimrocks and this ecologically, regionally, and historically significant City of Billings Park that overlooks the city and Yellowstone River Valley. Enhancements recommended in the 1997 Master Plan have been incrementally realized including interpretive sites, trail markers, trail heads, native landscape restoration, and multi-use trails connecting to the larger greenway system originally planned by Fischer & Associates. *AECOM project.