Chambersburg Road, continuing east through Cashtown Gap in South Mountain. The road becomes three lanes with two eastbound lanes and one westbound lane before it turns back to a three-lane road with a center left-turn lane. The route intersects the western terminus of PA 234. US 30 continues east with one eastbound lane and two westbound lanes before narrowing to a two-lane road. The route curves southeast in the community of Hilltown and gains a center left-turn lane. The road passes through the community of McKnightstown, where it narrows to two lanes. US 30 crosses CSX's Hanover Subdivision railroad line at-grade in the community of Seven Stars. The route heads to the north of Gettysburg Regional Airport and passes through the community of Stremmels before it runs through a section of Gettysburg National Military Park. US 30 enters the borough of Gettysburg and becomes Buford Avenue, passing north of the United Lutheran Seminary as it heads into developed areas and turns east onto Chambersburg Street. The route continues into downtown Gettysburg and meets US 15 Bus./PA 116 at Lincoln Square, a traffic circle. At this point, US 30 heads east concurrent with PA 116 on York Street, with PA 116 splitting to the east and US 30 continuing northeast along York Street. The route leaves Gettysburg upon crossing Rock Creek and becomes York Road, a three-lane road with a center left-turn lane, with CSX's Hanover Subdivision parallel to the northwest. The road turns into a four-lane divided highway as it comes to an interchange with the US 15 freeway. US 30 continues east-northeast as a three-lane road with a center left-turn lane through a mix of rural areas and development, passing through the community of Guldens. The route curves east and briefly gains a second westbound lane before heading through the community of Brush Run. The road narrows to two lanes and crosses the South Branch Conewago Creek, where the name changes to Lincoln Way West. US 30 enters the borough of New Oxford, crossing CSX's Hanover Subdivision at-grade and meeting Carlisle Street/Hanover Street at the New Oxford Town Square, a traffic circle. The route becomes Lincoln Way East before it leaves New Oxford, where it turns into York Road and gains a center left-turn lane. The road crosses PA 94 in the community of Cross Keys and gains a second westbound lane further east before it reaches the borough