Some bands form around a new idea. Cimarron 615 formed around a shared legacy.

The group’s roots run directly through Poco, one of the pioneering architects of California country-rock. Drummer Rick Lonow and bassist/vocalist Jack Sundrud served as Poco’s longtime rhythm section until the band’s journey came to an end following the death of co-founder Rusty Young in 2021. Keyboardist Michael Webb spent eight years in Poco, while songwriter and vocalist Ronnie Guilbeau co-wrote the band’s 1989 Top 20 hit “Call It Love” with Lonow.

Their connection extends far beyond a single chapter. Webb and Sundrud co-produced Poco’s 2013 albumAll Fired Up, while Lonow, Webb, and Sundrud all performed on Young’s acclaimed 2017 solo albumWaitin’ For The Sun. Together they helped shape the sound of one of country-rock’s most enduring institutions.

Cimarron 615 emerged in the wake of Young’s passing. While assembling musicians for a Rusty Young tribute concert and album, Blue Élan Records founder Kirk Pasich brought Lonow, Sundrud, and Webb together as part of a house band for several recording projects. The chemistry proved undeniable. When Guilbeau joined the lineup in 2023, the group found its final piece.

What began as a tribute evolved into something entirely its own.

Drawing on decades of songwriting, recording, and touring experience, Cimarron 615 embraces the tradition Poco helped establish while pushing it forward with fresh material and a renewed sense of purpose. Their music blends country storytelling, rock-and-roll energy, and the soaring vocal harmonies that have long defined the California country-rock sound.

“Rusty used to say it was rock musicians playing country instruments,” Lonow recalls. “And the harmonies are always a big part of it. That’s the common thread with all of us. It gives you country music, rock music, and vocal harmonies all in one package. That’s our DNA.”

That DNA runs throughout Cimarron 615’s music. Rich harmonies, seasoned musicianship, and finely crafted songs reflect a lifetime spent mastering the craft while retaining the joy of discovery. The band honors its lineage without becoming trapped by it, creating music that feels both timeless and immediate.

For listeners who grew up with Poco, Cimarron 615 offers a continuation of a beloved musical tradition. For new audiences, it serves as a reminder that great songs, great playing, and great harmonies never go out of style.

The story begins with Poco and Rusty Young.

The next chapter belongs to Cimarron 615.