Join MOSS and become a certified Montana Master Naturalist through the Montana Natural History Center.

Through insightful discussions and outdoor field lessons, you’ll learn about ecology and geology, gymnosperms, plant identification, mammalogy, tracking, ornithology, entomology and other connected natural science subjects that make our home special!

Class begins Wednesday, May 5, and ends Wednesday, June 30

  • 9 consecutive Wednesday classes 5:30-8:30 pm

  • 3 Saturday field trips May 22, June 12 and June 26

  • During each session we will meet at a different outdoor location especially suited to the topic of focus

  • To qualify for certification, you must attend 40 class hours

  • $350 for MOSS Members (become a member here!

  • $395 for non-members

  • Scholarships available!


  • Adults only (but we have plenty of other programs geared toward youth)!

  • Participants should be comfortable hiking up to two miles at a slow pace

  • Participants should come prepared to be completely outside for each 3 and 6 hour session (see suggested gear list here) 

  • Participants may decide to collectively make changes to the schedule based upon forecasted weather conditions

  • 20 hours of volunteer service and 8 hours of continuing education needed for annual recertification

Our Spring 2020 Master Naturalists checking out some bear claw markings on a tree!

Our Spring 2020 Master Naturalists checking out some bear claw markings on a tree!

Suggested Gear List

  • Sturdy hiking shoes or boots

  • Warm layers

  • Rain jacket and pants

  • Camp chair

  • Water bottles (1-2 liters)

  • snacks/dinner

  • Backpack

  • Hiking poles

  • Hat and gloves

  • sunglasses/sunscreen

  • Field Journal and pen/pencil (required)

  • Binoculars if you have them!


Meet your Master Naturalist Instructor… Cedar Mathers-Winn


Since he was a kid crashing around after lizards in California, Cedar has tried to spend as much time as possible outside. In his attempts to meet this goal, he has found himself occupied in all manner of strange jobs and places: recording tiny Fairywrens in tropical Australia; climbing palm trees in the Dominican Republic; chasing woodpeckers through the burnt forests of the Sierra Nevada; even recording traditional music on a field expedition to Bhutan! Wherever he finds himself, Cedar employs the inquisitive mind and sharp senses of a naturalist, studying each ecosystem and its inhabitants with dedication and no small degree of joy. In 2018, he turned his focus to earning his Master’s degree at the University of Montana, studying communication and ecology of mixed-species flocks of birds. This work produced some astonishing insights into the abilities of forest songbirds to communicate about their predators.

Cedar has always been passionate about sharing his knowledge and enthusiasm for nature with anyone who would listen, and relishes opportunities to do this through teaching. He has taught undergraduates, professional scientists, and the public in a great variety of topics in biology and natural history – both indoors and outdoors. When not teaching or working as a bioacoustical scientist, Cedar enjoys writing, making music, foraging for fungi, and learning as much as he can from simply being in nature.