Mark C. Tilden (Navajo) was formerly with a private law firm from September, 1990 to September, 1994 when he then joined the Native American Rights Fund (NARF) as a staff attorney. He worked at NARF for 15 years prior to going into private practice. He represents tribal governments on federal acknowledgment, general counsel matters, administrative law, environmental law, Indian housing law, Indian gaming law and economic development, legislative advocacy at the state and federal level, Indian child welfare and protection services law and tribal governance. He writes, lectures and trains in some of these areas of federal Indian law.
He was awarded the Environmental Achievement Award by the U.S. Environmental Protection Agency for Outstanding Work with the Oglala Sioux Tribe on developing a Tribal Environmental Code. He was the Lead Attorney and Project Manager on the development and publication of “A Practical Guide to the Indian Child Welfare Act,” as well as a contributing author. He is the author of a book titled “Tribal Constitution Handbook, A Practical Guide to Writing or Revising a Tribal Constitution” and co-author of “Indian Child Welfare Act Handbook: A Legal Guide to the Custody and Adoption of Native American Children” published by the American Bar Association.
He is admitted to practice law in Colorado, New York, Massachusetts and the District of Columbia, as well as several federal and tribal courts. He is a member of a number of legal associations, including former service on the American Bar Association’s Presidential Advisory Council on Diversity in the Profession, the ABA Steering Committee on the Unmet Legal Needs of Children and the ABA Commission on Homelessness and Poverty.
In April 2012, he was appointed, for one year, by Colorado Governor John Hickenlooper to serve on the Colorado’s Children’s Trust Fund as a member of the Board of Directors. He has also been appointed to serve as a Trustee on Father Flanagan’s Boys’ Home National Board of Trustees, beginning in November 2012.