The Bisbee Blues Festival is returning to Warren Ballpark for its sixth annual festival on Saturday.

This is the festival's second year at the ballpark, which dates to 1909 - five years before Chicago built Wrigley Field.

The Bisbee Blues Festival started as a small, grass-roots-funded event at the city park. Within five years, it had become so popular that it had outgrown the park, prompting the move.

The festival boasts an impressive roster of talent, from folk to blues to roots music. Performers will include Tab Benoit, Shemekia Copeland, the Rhythm Room All-Stars, the Hounds from Tucson, and Bisbee band Train Wreck.

Benoit headlines the festival, and seeing as he fancies himself as much an environmental activist as a musician, he should sit right at home at this "green" event. The Baton Rouge, La., native is renowned for his eclectic blues style characterized by its mix of swamp, soul and Chicago blues. He also co-founded the 7-year-old Voice of the Wetlands, which seeks to raise awareness of the receding coastal wetlands of Louisiana.

Others on the lineup:

• Shemekia Copeland, 31, who has had staggering success in an often-overlooked genre. She opened for the Rolling Stones while still in her early 20s and has proved her blues-authenticity cred through performances with legends such as Buddy Guy and Taj Mahal.

• The fan favorite Train Wreck comprises something of a supergroup roster of Bisbee musicians playing straight-up, pure and simple blues that recall the styles of Memphis and Chicago.

If you go

• What: Sixth annual Bisbee Blues Festival.

• When: Doors open at 10 a.m. Saturday, first show at 11.

• Where: The Historic Warren Ballpark in Bisbee. Directions: Take Arizona 92 to Bisbee, turn on Bisbee Road at the traffic circle, and follow the signs to the ballpark.

• Tickets: $25 at the gate

• Details: thebisbee bluesfestival.com