She is an author in the field of social sciences, has held posts of responsibility as Treasurer for her tribe,[3] served on several committees for Indigenous Peoples within the United Nations.

[6] In 2021, she joined the Center for Earth Ethics at Union Theological Seminary (New York City) as a senior fellow for the Original Caretakers Program.

[7] Mona became interested in indigenous social justice at the age of 14 when she first heard about the occupation of Alcatraz Island by a Native American group called Indians of All Tribes in 1969.

[5] Mona has held many positions relating to social justice including: She has done "research in the social sciences on alcoholism, domestic violence, and culturally appropriate treatments for Native Americans,"[5] and work on health issues with the Inter Tribal Council of Arizona, Inc.[10] As of 2013, she was working on a Ph.D. in the Interdisciplinary Justice Studies department at Arizona State University.

[11] In 2004, Mona was approached by The Center for Sacred Studies to serve on the International Council of 13 Indigenous Grandmothers.