south of the community of Fort Loudon. The route continues east-northeast through rural areas in the valley, intersecting the northern terminus of PA 416 and passing through the community of St. Thomas. US 30 gains a center left-turn lane, crossing Back Creek. Farther east, the road has a junction with the northern terminus of PA 995 before it enters the borough of Chambersburg. At this point, the route runs through developed areas and splits into the one-way pair of West Loudon Street eastbound and Lincoln Way West westbound, with West Loudon Street a two-way, two-lane road and Lincoln Way West carrying two lanes of one-way traffic. US 30 crosses the Conococheague Creek and the Chambersburg Rail-Trail, with the eastbound direction shifting to West Queen Street, which carries two lanes of one-way traffic. The route heads into downtown Chambersburg and intersects US 11, which is routed on the one-way pair of Main Street southbound and 2nd Street northbound. Westbound US 30 meets southbound US 11 at Memorial Square, which features a fountain in the middle of the intersection. Upon crossing southbound US 11, US 30 becomes East Queen Street eastbound and Lincoln Way East westbound, crossing under Norfolk Southern's Lurgan Branch railroad line before both directions of US 30 rejoin on Lincoln Way East, a three-lane road with a center left-turn lane. The road runs east and passes south of WellSpan Chambersburg Hospital before it widens to five lanes as it comes to an interchange with I-81 on the eastern border of Chambersburg. Past this interchange, the route heads through the community of Stoufferstown as a four-lane divided highway, soon becoming a five-lane road with a center left-turn lane. US 30 narrows to three lanes as it continues through a mix of rural areas and development, passing south of the community of Fayetteville before it forms a short concurrency with PA 997 upon intersecting that route in the community of Greenwood. The road leaves the Cumberland Valley as it heads into the Michaux State Forest, where it crosses South Mountain. The route passes south of Caledonia State Park and becomes a three-lane road with two eastbound lanes and one westbound lane, crossing the Appalachian Trail. US 30 briefly becomes four lanes before it loses the second lane eastbound and intersects PA 233, where it turns into a three-lane road with a center left-turn lane. US 30 enters Adams County and becomes