south of the borough of Latrobe. US 30 narrows to four lanes before it reaches a cloverleaf interchange with PA 982 that provides access to Latrobe to the north and the borough of Youngstown to the south. The median of the road widens and the westbound lanes cross the Loyalhanna Creek, at which point the Loyalhanna Creek runs in the median of US 30. The route comes to an intersection with the southern terminus of PA 217. Past this intersection, US 30 winds southeast through a gap in Chestnut Ridge, with the eastbound lanes crossing the Loyalhanna Creek. At this point, the road heads east as a four-lane divided highway with the Loyalhanna Creek parallel to the south, passing to the north of the Idlewild and Soak Zone amusement park. The median widens again and the route intersects the southern terminus of PA 259 in the community of Millbank. US 30 curves south and turns to the east. The road curves southeast and the median narrows, at which point it heads along the southwest border of the borough of Ligonier as a four-lane divided highway. The route crosses PA 711 and passes to the south of Fort Ligonier. US 30 leaves Ligonier and narrows to a two-lane undivided road, intersecting the northern terminus of PA 381. The route passes through the community of Laughlintown and runs along the southern border of the borough of Laurel Mountain. Past the borough of Laurel Mountain, the road ascends Laurel Hill and comes to a westbound runaway truck ramp. Further up the hill, the route reaches a westbound truck brake check station and briefly becomes a divided highway through a sharp turn before it comes to another westbound truck brake check station. At the summit of Laurel Hill, US 30 enters Somerset County and begins to descend the hill along two-lane undivided Lincoln Highway, passing through a section of Laurel Ridge State Park where it crosses the Laurel Highlands Hiking Trail. After descending the hill, the road runs east-southeast. The route enters the borough of Jennerstown and becomes West Pitt Street. US 30 intersects PA 985 and becomes East Pitt Street. The road leaves Jennerstown and becomes Lincoln Highway again. The route heads through the community of Jenners Crossroads before it has a junction with PA 601 in the community of Ferrellton. US 30 briefly becomes a four-lane divided highway as it comes to