2003: Rocky Mountain Nature Association Conservation Corps Program was established through a partnership with the Daniels Fund to provide underserved students with an opportunity to gain experience in natural resource careers through an eleven-week summer internship. Initially, the program supported one seven-member crew working in Rocky Mountain National Park.
2006: RMNA adds a second crew to the program working in the Rawah Wilderness Area of the Arapaho-Roosevelt National Forest. Both the Estes Crew in Rocky Mountain National Park and the Rawah Crew host six participants each. The crews are comprised of a leader, an assistant leader, and four crew members. With this growth the program becomes known as the American Conservation Corps.
2007: RMNA adds a third crew located in the Sulphur Ranger District of the Arapaho-Roosevelt National Forest (West of Rocky Mountain National Park) to the program.
2009: The American Conservation Corps increases in size by adding a crew to the Canyon Lakes District of the Arapaho-Roosevelt National Forest. This crew serves in the Red Feather Lakes/Fort Collins area. The American Conservation Corps program of Rocky Mountain Nature Association now supports 24 conservation corps interns throughout each summer.
2013: The American Conservation Corps is accepted into the 21st Century Conservation Service Corps, a national movement supporting private-public partnerships that engage youth in employment opportunities on public lands.
2014: Rocky Mountain Nature Association changes its name to Rocky Mountain Conservancy and the American Conservation Corps becomes known as the Rocky Mountain Conservancy –Conservation Corps. Two additional crews are added, a second Estes Crew serving in Rocky Mountain National Park and a new crew in the Boulder Ranger District of the Arapaho-Roosevelt National Forests. The Conservation Corps now sponsors 36 interns annually.
2015: The Rocky Mountain Conservancy continues to host six crews during the summer season; however, the second Estes Crew moves over to the Colorado River District of Rocky Mountain National Park to help the special projects division on a historical preservation project. The crew is now known as the Kawuneeche Crew.
2016: The Rocky Mountain Conservancy – Conservation Corps becomes a member of The Corps Network to expand the program’s resources, gain insight and experience from other programs, and participate in a nationwide network of similar youth engagement programs.