A perfect twofer pairing of the best Duluth has to offer -- and now an annual tradition -- Trampled by Turtles will once again headline an all-Minnesotan concert at scenic Bayfront Festival Park in downtown Duluth on July 11 with openers John Mark Nelson, Hobo Nephews of Uncle Frank and Actual Wolf. Tickets go on sale Friday at noon for $25 through eTix.com and First Avenue outlets.

The concert's promoter, First Ave moved the show to the weekend after July 4 from the weekend before the holiday to improve the chances of avoiding a rainstorm like the one that hit last year when Doomtree was the opener (Atmosphere joined TBT the year before).

However, that date switch sets up a possible conflict for Twin Cities music lovers who might make the drive, since it falls on the second night of the Basilica Block Party, when Wilco is expected to be the headlining act. The Basilica's lineup won't be announced until Thursday afternoon, with Weezer the expected July 10 headliner and other names such as Jenny Lewis, Echosmith and Jason Isbell in the rumor mill.

Bayfront won't be the biggest instate gig by Trampled this year: Those ever-nomadic acoustic pickers -- who slipped in Duluth Homegrown and First Ave gigs into their busy tour itinerary next week -- will host a second installment of their well-received Festival Palomino at Canterbury Park in Shakopee on Sept. 19. The lineup, said to be packed with several other big names, will be announced in mid-May.

Still, for fans of TBT and/or Duluth, it's hard to beat the homey vibe of the Bayfront shows, which are always free for children 12 and under and usually include a passing ore boat or two. Other concerts on for the grassy waterfront amphitheater this year include the Bayfront Reggae & World Music Fest on July 18 (acts TBA), the Howling Moon Music Fest on July 31 (with country singer Jon Pardi) and, of course, the Bayfront Blues Fest Aug. 7-9 (Otis Clay, Charlie Musselwhite, NRBQ). There is also one concert listed as TBA on Aug. 29.