Mark Alan Anderson left this world on February 28, 2026. He was 65 years old. He was born July 13, 1960, in Rapid City, SD to Lloyd and Theola Anderson. He attended Rapid City schools, graduating from Stevens High School in 1978. Mark successfully completed technical school in Denver, CO and began his long career as a heavy equipment and crusher mechanic. Mark married Leslie Deering in 1981. To this union his sons, Ryan and Taylor Anderson, were born in Spearfish, SD. He loved his sons so much. Mark also loved fast cars, fishing, canasta with his family (especially when he won) and a good cribbage game.

Mark spent his summers while in school with his dad, Lloyd, on Summit Construction road projects in South Dakota and Wyoming. He learned the importance of hard work and that a mechanic is the first man on the job in the morning and the last to leave at night. Mark took special pride in being a part of the Homestake Open Cut surface crew.

Mark is survived by his sons, Ryan Anderson and his wife Sarah, along with their three children Karrington, Beckett, and Halle, Cheyenne, WY; Taylor Anderson and his significant other Kristi Zebroski along with his two sons Owen and Nolan and her daughters Kaya and Niya, Gillette WY ; his former wife, Leslie Deering, Rapid City, SD; his sister, Jane Gustafson and her husband Dean, Aurora CO; his nephew, Trevor Gustafson and his wife Kristen, Springboro, OH; his niece Joni Tucker, and her husband, Kurt, Fort Collins, CO; nephew Scot Homstad, and his wife Lena, Aurora, CO; sister in law Ellen Quinn, her husband Bob; nephew Scott Anderson, Salem, OR.

He was preceded in death by his parents, his brother Larry Anderson, and his sister, Lorie Homstad.

We will always remember Mark as a kind and generous man. He was loved and respected by his family, friends and co-workers.

Visitation will be one hour prior to the service. Services will be held at 11:00AM on March 9, 2026 at Fidler-Isburg Funeral Chapel with the Pastor Marty Garwood officiating. Interment will be at Rose Hill Cemetery immediately following his service.

Arrangements are under the care of Fidler-Isburg Funeral Chapel & Isburg Crematory. Online condolences may be written at https://www.fidler-isburgfuneralchapels.com/