Deryk Ulmer, 28 of Spearfish, passed away on Saturday, December 15, 2018 in Denver, CO from a lifelong congenital heart defect.

Deryk was born on September 19, 1990 in Rapid City to Brian Ulmer and Michelle (White Eyes) Harstad. Deryk attended Spearfish Public Schools and graduated from Spearfish High School in 2009. He went on to attend STI in Sioux Falls and graduating in 2014. Deryk starting working at the Ramkota in Sioux Falls at the age of 14 until he graduated from STI. He was currently working at Cadillac Jacks in Deadwood, SD.

Deryk was an avid sports fan and enjoyed basketball, baseball, football & golf. Golf was his passion and he took pride in the fact that he could defeat his Dad & his buddies on any given day.

He is survived by his parents, Brian and Kristin Ulmer of Spearfish and Michelle and Chad Harstad of Brandon, SD; siblings, Larisa (Cole) Solseng, Vanessa (Alex) Evans, Andrew, McKenzie (Micheal), Chandler (Nick), Teygan and Baillie; niece and nephew, Gracelyn and Bowen Solseng; grandparents, Joyce Rabenberg; Cora Mae Haskell; and Gordie and Jane Harstad; and numerous aunts, uncles and cousins. He was preceded in death by his grandparents, Victor and Lillian Ulmer and Charles Haskell Jr. and aunt, Marsha Fredrich.

Visitation will be from 3-5 PM on Friday, December 21, 2018 at Fidler-Isburg Funeral Chapel in Spearfish. Memorial services will be at 10:30 AM on Saturday, December 22, 2018 at Our Savior's Lutheran Church. In lieu of flowers a memorial has been established.

A Celebration of Life will be from 3-6 PM on Friday December 28 in the Roosevelt Room at the Ramkota Hotel in Sioux Falls, SD.