Our Team

Cassie Ayoungman (she/her)

Founder

Cassie Ayoungman is a proud Niitsitapi climber from Siksika Nation, AB.

She discovered the outdoors in her mid twenties and noticed a lack of diversity. It made her question why that is. This is what sparked her into developing programs.

Climbing has given her the opportunity to explore and connect with her ancestral lands. Cassie's relationship with climbing has grown over the years and has led to become both a teacher and a healer.

“Climbing has taught me to be more than capable of facing my fears. The challenge of climbing has taught me to breathe through cruxes and find strength. Moving in and out of my comfort zone while travelling in the mountains helps with my self-growth.

By starting Soul of Miistaki, I have been able to share my passion of this healing practice of exploring our beautiful and sacred backyard with my community.”

Coralia Sevilla (she/ella)

Community Coordinator & Communications

Coralia Diane Sevilla is a school teacher in Mînî Thnî and a part-time climber instructor Calgary. Education and Outdoor recreation have been significant fields of work for Coralia because of the lack of representation of visible minorities in these industries. In her youth, Coralia didn’t see her cultural values as a Nahua Nicarao woman appreciated. Now, she uses her roles to ensure that many people feel acknowledged and valued more holistically.

“Soul of Miistaki represents a safe place that allows me to emotionally connect with the land and learn about different cultures through my peers in a way that humanizes and values our personal journeys.”

Coralia feels empowered to support others to build upon their skills within their outdoors pursuits and pay forward her opportunities through Soul Of Miistaki. Through working with Soul of Miistaki, Coralia hopes to continue building a community around her and pushing herself outside of her comfort zone with her outdoor and personal goals.

Photo Credit : Camille Santiago

Photo Credit : Cody Shimizu

Mackenzie Kamâmak Brown (she/they)

Non-Profit Board Member: President

Mackenzie Kamâmak Brown is a 30 year old Cree artist, educator, and community leader from Sturgeon Lake Cree Nation, now based in Calgary. As the owner of Kamâmak, she bridges Indigenous and non-Indigenous communities through cultural education, storytelling, and art. Her background includes serving as Director of Industry Development at Indigenous Tourism Alberta, where she helped grow the organization’s membership province-wide and led the creation of Business development, resources, and cultural-awareness training and allyship resources now used across Canada. She is currently the Executive Advisor of Indigenous relations at the Glenbow Museum, where she works with communities from turtle island and beyond to help with repatriation, reconciliation, strategy development, community engagement and curatorial vision.

A multidisciplinary creative, Kamâmak is a muralist, painter, traditional crafts artist, drummer, and singer. She performs nationally and internationally with Warrior Women, a performance and teaching duo she created with her mother. Her work is grounded in Cree culture and language, which she continues to revitalize through public art, education, and weekly Cree-language classes. Recognized with numerous awards -- including Calgary Mayors indigenous Artist of the Year 2025 and Avenue Magazine’s Top 40 Under 40 -- she is dedicated to fostering connection, understanding, and cultural pride through every facet of her practice.

Theoren Royal (he/him)

Non-Profit Board Member: Secretary

Theoren Royal is a member of the Siksika Nation and serves as Manager of Corporate Affairs and Communications for the Blackfoot Confederacy Tribal Council, representing the collective interests of the Siksika, Kainai, Piikani, and Amskapi Piikani Nations. With over a decade of experience across sectors including human and social services, economic development, tourism, energy, and investment, he leads the development and execution of strategic communications and marketing initiatives that support Nation-building priorities. His work spans high-level government relations, major event coordination, digital media strategy, and the advancement of initiatives such as Destination Blackfoot, cross-border advocacy, and Confederacy-wide programs aligned with long-term strategic planning.

Grounded in his identity as Niitsitapi, Theoren Royal’s work is driven by a commitment to advancing the well-being of Siksikaitsitapi and upholding the legacy of his people. Recognized for his ability to translate complex ideas into impactful messaging, he applies expertise in branding, storytelling, and digital engagement to strengthen organizational presence and influence. His approach centers on communications as a tool for connection, ensuring that Blackfoot voices, priorities, and stories are effectively represented across local, national, and international platforms.

Lexie Obey (she/her)

Director of Development & Community Coordinator

Lexie, a dedicated youth worker, silviculturist, and community organizer, proudly identifies as Nehhiyaw from Piapot First Nations in Saskatchewan (paternal side) and Michif (maternal side). Lexie has been actively involved in supporting Indigenous youth in healing center environments since 2018.

With a deep passion for land-based experiences, Lexie initiated a grassroots Indigenous Youth Climbing Program in Regina, SK, in 2021, fostering connections with Indigenous youth through movement. She sees Soul of Miistaki as an organization closely aligned with her values of community cultivation and fostering relationships with the land. Infusing intentionality and gratitude into her programming, Lexie aims to extend her enthusiasm for climbing and trail running to fellow BIPOC community members while serving as a steward for the lands we reside and recreate on.