Rachel Brennan

Instructor: Alaska Expedition 2

A Colorado native, Rachel is no stranger to the outdoor education and recreation world. Prior to joining Adventure Treks for her first season as an instructor, Rachel was a program instructor at the Keystone Science School; she taught classes on atmospheric science, biology and ecology, earth science, and survival skills. She also coordinated multi-day backpacking, rock climbing, and whitewater rafting trips. She’s also volunteered with the Greenwood Wildlife Rehabilitation Center; tutored elementary school students in math, language, reading and science; and worked as a research assistant at CU Boulder’s Emery Lab.

  • Education: University of Colorado Boulder, bachelor’s degree in ecology and evolutionary biology
  • Medical certification: Wilderness first responder
  • Favorite outdoor memory: Stargazing on a backpacking trip. We were lucky to go out on a night with a meteor shower and saw so many shooting stars.
  • Favorite outdoor achievement: There are so many to choose from. One that definitely stands out is a canyoneering trip in the Utah desert during late summer. We successfully navigated with a larger group through three different canyons in very intense heat.
  • Favorite hobbies: I love skiing, rock climbing, trail running, backpacking, and anything that keeps me active and in the sunshine. Some of my non-outdoor based activities include reading, cooking, and baking bread in a high-elevation environment.