TUCSON, AZ (January 14, 2026) — Mountainside Fitness, a longtime Arizona-based fitness brand, announced it is expanding into Tucson and Southern Arizona, bringing its “strong, welcoming fitness communities” concept to the region.
“Tucson, we’re coming your way!” the company says in a message posted to its website. “As a proud Arizona brand, Mountainside Fitness has been building strong, welcoming fitness communities across the Phoenix Valley for over 35 years, and now we’re excited to bring that same local spirit to Tucson and Southern Arizona.”
Mountainside Fitness said it will share updates as the expansion progresses, including progress reports, behind-the-scenes content, and opportunities for the community to get involved early…