To the south of the Susquehanna River gap in the south-central part of the state is the Cumberland Valley, part of the Great Appalachian Valley; to its northwest side are the southern reaches of the Susquehanna Valley with picturesque streams channeling travel corridors deep into and over the central and western mountains and valleys—the heartland interior counties of Pennsylvania; along the Main Branch Susquehanna, the valleys also lead into northeast Pennsylvania, into the "Northern Coal Region" of the Wyoming Valley and the distant Poconos. To the south of Blue Mountain lies the "Capital Region" about Harrisburg and nearby communities, the rich farming country of the Lebanon Valley and the Pennsylvania Dutch Country of York and Lancaster counties, the lower half of the Lehigh Valley, and the lower Delaware Valley; the latter two extend north through water gaps beyond the ridgeline.