Post Cereals has launched a display-based mobile campaign via the Pocket Ranger mobile app network for US state parks, as reported by AdWeek.

The Pocket Ranger app is the creation of ParksByNature, a network for US state parks that allows the creation of customized apps. To this point, 25 states have created customized Pocket Ranger apps with ParksByNature, and the corporate expects to have all 50 states covered by next year.

The Post Cereals campaign will include in-parks product samples for its Grape Nuts Fit product, and may run ads for varied brand-sponsored challenges and events on state parks’ mobile app displays and mobile sites.

“Our customers are already spending time within the outdoors,” Stephanie Bennett, brand manager for Grape Nuts, told AdWeek. “So we’re attempting to reach them while they explore the parks.”