Back Forty is a 100%-owned development-stage project delineating a gold-rich volcanogenic massive sulfide (VMS) deposit located along the mineral-rich Penokean Volcanic Belt in Michigan’s Upper Peninsula. Historically, Aquila Resources Inc. and various past joint venture partners, including Hudbay Minerals, invested more than $95 million exploring and advancing Back Forty.

On October 27, 2023, Aquila published the results of an inaugural SK1300 on Back Forty. Aquila's current Technical Report can be downloaded here.