DETROIT, MI -- A gross roots group called Assemble Detroit has revealed plans for a free extreme sports event that will take place next month at a historic building downtown.

The old Michigan Theatre building will host the Zumiez Best Foot Forward national skateboarding finals on Aug. 9 and feature at least 37 regional competitors.

Co-organizers Garret Koehler and Derrick Dykas told Metro Times that that Zumiez reached out to them following the hype they built last summer during their ESPN X Games bid.

The X Games bid ended up going to Austin, Texas.

Skateboarding finals in Detroit will take place 2-10 p.m. at the Michigan Theatre Building, 220 Bagley St.

An official Assemble Detroit after-party will be held at 441 W. Canfield (warehouse behind Shinola) from 10 p.m. to 2 a.m that day.

Metro Times reported the after-party will have a half-pipe, an open skate jam (no bikes), performances by Black Noi$e, Rough Francis, and ZelooperZ.

Admission is $5. For more information, visit the event's Facebook page.