everyone called here is called to be a minister

TMC axiom

teaching team

Randy Youngblood

Founder & Lead Pastor
I am the Founding and Senior Pastor of Thunder Mountain Church.  My wife Kim and I came in 1989 from Iowa to join with a few families who were looking for a different approach to doing church and reaching this generation for Christ. God called me not to grow a church but to grow people and to see salvation not just as something that occurs when we die, but a blessing to live out daily as citizens of the Kingdom of God!
I answered the call to ministry during the first semester of bible college where I went just because I knew I needed a better understanding of the bible as a foundation for whatever I did with my life. While there I met Kim and we married in 1984 and raised two daughters who are both graduates of Buena High School.
My favorite hobby is coaching kid’s sports. I played football and basketball in high school and basketball in college but the majority of my coaching has been softball, baseball and soccer. I enjoyed teaching algebra for six years at Buena!

Justin McPeak

Executive Pastor
As the Executive Pastor, I partner with our Pastoral and Support Staff to create environments where people can experience the transforming love of God, as well as rotate teaching at our weekend gatherings. My beautiful wife, Eileen, and four kids have been in Sierra Vista and part of TMC since 2012.

Tessa Galindo

Assistant to Lead Pastor
I am married with three amazing kids! We keep busy in a variety of sports. I love seeing my kids physical gifting's as well as the character God is building in them. We love to be together, whether that is outside hiking or indoors watching a movie.
I am finishing my bachelors degree at Liberty University in Religious studies and criminal justice. We have been calling it compassion ministries.
I love being a part of the teaching team where so many unique perspectives are brought together to deliver one message each week by a pastor who God uses as His vessel to deliver His message! 

Graham Yost

Discipleship Pastor
My wife Britt and I have been married since 2009 and since then we have added 4 kids and an assortment of animals. We love Sierra Vista and the wilderness that surrounds this place! I really enjoy ice hockey, hiking with our kids, reading, and pretty much anything about nature.
My call into ministry was realized in 2021. My prior career field was military; I am a former Marine special operator, and I also worked as a civilian in special programs for the Army. I have a Master’s degree in Christian Ministry and one in the field of international relations. 
Right now, I serve as the Discipleship Pastor and have a desire to see everyone who comes to Thunder Mountain Church take their next steps closer to Jesus!

Jeff Brundidge

Next Generations Pastor
As the Next Generation Pastor, I have the privilege to share the hope I have in Christ and do life with students.  I get a front-row seat in watching Jesus become number one in a student’s life. 

Core staff

Savannah Porter

Office Manager

Kristal Bartelds


Danielle Light

Joe farmer

Guest Services Director
Stewardship Director

laura silva

Creative Arts Assistant

support staff

Sariah Davis

MOPS Director

Dave Gibbs

Prayer Coordinator

Suzanne Parker

Local Partner Coordinator

Mark Conley

Holly Lewis

Mike Tailford

Tech Support
Food Pantry Director
Outreach Projects Coordinator


Jeff Ebbing

Chairman 2020-2022

Richard Falcon


Mauro (Scotty) Scottorn

Mike Diehl

Randy Youngblood

Lead Pastor