Brandon Frederking, in sunglasses at left, cools youngsters Tuesday with squirts from a water bottle during a field trip to Pea Ridge National Military Park northeast of Rogers. About 150 youths in the Rogers Activity Center Summer Day Camp toured the park’s visitor center, Elkhorn Tavern, shown here, and the battlefield where the Battle of Pea Ridge was waged in March 1862. Frederking is a counselor at the day camp, which runs through mid-August.