north into Huntingdon County. US 522 heads north as Croghan Pike through Dublin Township on the east side of Shade Mountain. After intersecting PA 35 and PA 641 (Neelyton Road) in the village of Shade Gap, the U.S. Highway follows Shade Creek by the Shade Gap Feed and Flour Mill and through a gap in Shade Mountain into the Locke Valley in Cromwell Township. US 522 follows Shade Creek north, passing by the St. Mary's Covered Bridge, to Blacklog, then the highway curves west and follows Blacklog Creek through a gap in Blacklog Mountain. The highway becomes Ridgely Street in the borough of Orbisonia, where the highway intersects PA 994 (Elliot Street). US 522 parallels the East Broad Top Railroad and Aughwick Creek north into Shirley Township. The highway passes through the borough of Shirleysburg, crosses Aughwick Creek and the East Broad Top Railroad, and passes by the village of Aughwick Mills, where the route diverges from the creek. US 522 continues along the railroad to Allenport, where the highway meets the southern end of PA 103. The highway parallels the Juniata River north along the eastern edge of the borough of Mount Union. US 522 passes under Water Street and Norfolk Southern Railway's Pittsburgh Line (the former Main Line of the Pennsylvania Railroad) before crossing the river to an intersection with US 22 (William Penn Highway) in Mifflin County. Mount Union to Selinsgrove US 522 joins US 22 in a concurrency that heads northeast between Jacks Mountain to the northwest and the Juniata River to the southeast. The two highways follow Long Hollow Creek north through Wayne Township to Atkinson Mills, where the routes cross Beaverdam Run and enter the valley of Musser Run. US 522 and US 22 follow Musser Run into Oliver Township to the borough of McVeytown, north of which the highways briefly follow the Juniata River. The U.S. Highways cross Wakefield Run and cross Strodes Run at Strodes Mills into Granville Township. There, US 522 and US 22 expand to a four-lane freeway, the Vietnam Veterans Memorial Highway. US 22 Bus. splits from the mainline highways at a trumpet interchange, and the two U.S. Highways pass to the north side of Big Ridge opposite the business route. Shortly after entering Derry Township, US 522 and US 22 meet US 322 (28th Division Highway) at a directional-T interchange. The interchange includes partial cloverleaf interchange ramps with