Margaret Kran-Annexstein, Chapter Director
As the Colorado Chapter Director, I work with staff and volunteers to design and execute the mission of the Sierra Club in Colorado. As an organizer and campaigner, I am grateful for the opportunity to collaborate and strategize with inspiring and passionate activists that are envisioning a climate-just future. In my free time, I enjoy skiing, campfires, and hiking with my dog.
Garrett Royer, Senior Government Affairs and Political Advocate
As the Senior Government Affairs and Political Advocate for the Sierra Club Colorado Chapter. In this position, I work closely with our volunteer-led Legislative and Political Committees to advance the organization’s climate, wildlife, and equity goals in the state legislature and by electing pro-environmental allies to office. Outside of work, you’ll find me skiing, enjoying Colorado’s many hiking trails, or catching up on the latest season of RuPaul’s Drag Race.
Alexis Schwartz, Senior Lands, Water, Wildlife Organizer
I’m a Senior Field Organizer at the Colorado Sierra Club; I lead our Public Lands efforts to establish areas of special ecological, cultural, and conservational significance as a national monument, to afford them greater protection from extractive industries. My focus area is campaigning to establish the Dolores Canyons area of southwest Colorado as a national monument. My favorite pastimes include exploring the outdoors, vegetable gardening, and upcycled crafting.
Sarah Tresedder, Senior Climate and Energy Organizer
My name is Sarah (she/her), and I am the Senior Climate and Energy Organizer for the Sierra Club CO Chatper. My work focuses on advancing building electrification, pushing back against the fossil fuel industry, leading regulatory advocacy, and driving climate action across the state. I have a background in both public health and public policy and am excited to work with our members and supporters to bring about a safe, affordable, and clean energy future for all.
Looking to get 🔌 plugged into the Colorado Chapter? Don't be a stranger - shoot me an email at sarah.tresedder@sierraclub.org and let’s work together to make sure our homes and businesses are clean, safe, and affordable!
Dana McMaster, Administrative Lead
I’m Dana McMaster, Administrative Lead for the Colorado Sierra Club. I support our fundraising programs and administrative functions and work closely with our staff, Steering Committee, and volunteer leaders to provide support and resources. I enjoy tending my gardens, cooking delicious vegan food, and spending quality time with my four cats in my free time.