Klahr, PA

Klahr is an unincorporated community and census-designated place in Blair County, Pennsylvania, United States. Klahr was first listed as a CDP prior to the 2020 census. The CDP is in southwestern Blair County, in the southern part of Greenfield Township. The through line in Klahr is the way its history and present-day settings remain visible on the same map. Klahr makes the most sense through those concrete details, with its history still visible in the settings people use today. Klahr sits at the head of the valley of Smoky Run, at the base of Spruce Knob, an eastern spur of Blue Knob, the second-highest summit in Pennsylvania.