Question: Great WAgon Road was an improved trail through one of the major landform features of eastern North America, and stretches about 1200 miles from Quebec to where?

Context paragraphs:
Court Manor: Court Manor (built as Mooreland Hall) is an early Greek Revival plantation house and estate in Rockingham County, Virginia, located 4 mi south of the town of New Market.  With its stately manor house and prime location in the heart of the Shenandoah Valley, Court Manor has long been regarded as "one of the finest estates in the Valley of Virginia."  The estate is situated on U.S. Route 11, which follows the route of the historic Great Wagon Road, a colonial thoroughfare connecting Philadelphia, Pennsylvania to Savannah, Georgia.  The estate's landholdings include some 2000 acre of land, extending from the base of the Massanutten Mountain Ridge to about one-half mile (0.5 mi ) west of U.S. Route 11.  The manor house (circa 1800), with its impressive Greek Revival portico, can be easily seen from the tree-lined stretch of U.S. Route 11 that passes through the heart of the estate.

Covered wagon: The covered wagon was long the dominant form of transport in pre-industrial America.  With roots in the heavy Conestoga wagon developed for the rough, undeveloped roads and paths of the colonial East, the covered wagon spread west with American migration.  Heavily relied upon along such travel routes as the Great Wagon Road and the Santa Fe and Oregon Trails, it carried settlers seeking land, gold, and new futures ever further west.

Leaving of Pecos: Leaving of Pecos was originally a camping place along the west bank of the Pecos River, on the wagon road called the Lower Emigrant Road, Military Road or San Antonio-El Paso Road in Texas.  It was located 38 miles north of the Lancaster Crossing of the Pecos, and 16 miles east of the first crossing of Escondido Creek.  It was also located a mile north of where the wagon road had its junction with a cutoff to the north to the wagon road called the Upper Emigrant Road between Fredricksburg, Texas and Comanche Springs, now Fort Stockton, Texas, where it joined the Lower Emigrant Road.  It was later a stopping place on the route of San Antonio - El Paso Mail and the San Antonio-San Diego Mail Line.

Carolina Road: The Carolina Road or the "Old Carolina Road" are names for various sections of the Great Wagon Road and other routes in colonial America.  "The 'Old Carolina Road', extending from Lancaster, Pennsylvania to the Yadkin Valley, was one of the most heavily traveled roads in eighteenth century America."  Parts of the 180 mile long Journey Through Hallowed Ground National Heritage Area scenic byway follows the Old Carolina Road through Pennsylvania, Maryland and Virginia.

Kneip Family and German Immigrants: German immigrants came to the United States in large numbers in the mid-18th until the late 18th centuries.  One such family is named Kneip.  This family came from Germany on the ship Rainer and landed in Philadelphia in 1749 with one individual named Christian Kneip.  After living his life in the Pennsylvania area, including marrying and having children, serving in the American Revolution on the side of the Patriots, his son, also named Christian, migrated south along the Great Wagon Road to settle in Rowan County near the present town of Salisbury.  This Christian(Jr) was in place in Rowan County (NC) during the first US Census in 1790.

Great Appalachian Valley: The Great Valley, also called the Great Appalachian Valley or Great Valley Region, is one of the major landform features of eastern North America.  It is a gigantic trough—a chain of valley lowlands—and the central feature of the Appalachian Mountain system.  The trough stretches about 1200 mi from Quebec to Alabama and has been an important north-south route of travel since prehistoric times.

Great Wagon Road: The Great Wagon Road was an improved trail through the Great Appalachian Valley from Pennsylvania to North Carolina, and from there to Georgia in colonial America.

Peter Jefferson: Peter Jefferson (February 29, 1708 – August 17, 1757) was the father of US President Thomas Jefferson (1743–1826).  A surveyor and cartographer, his "Fry-Jefferson Map" of 1751—created in collaboration with Joshua Fry—accurately depicted the Allegheny Mountains for the first time and showed the route of "The Great Road from the Yadkin River through Virginia to Philadelphia distant 455 Miles"—what would later come to be known as the Great Wagon Road.

Lausanne Landing, Pennsylvania: Historic Lausanne, also often called Lausanne Landing of the 1790s-1820s was a small settlement at the mouth of Nesquehoning Creek on the Lehigh River in marshy delta-like flood plain.  Some historic references will instead mention the 'Landing Tavern', and the reader must understand that Lausanne was a township organized in the wilderness with an almost unyeilding terrain hostile to man, but along an ancient Amerindian Trail, "the “Warriors' Path”" the white man could not resist traveling since it connected the Susquehanna River settlements of the lower Wyoming Valley to those around Philadelphia.  During the American Revolution, this route would become the rough 'Lausanne-Nescopeck Road', and after the turn of the century with a charter (1804), be improved into the wagon road toll road the Lehigh and Susquehanna Turnpike.  The fan-shaped plain provided some of the flattest landscape terrain in the entire area, so could also support a few small farm plots, boat building, and a lumbermill.  With the widespread deforestation creating the nation's first energy crises, what it also did was attract attention of timber and lumber companies, for the Lehigh could (at least, seasonally with preparation) support river arks.  The Nesquehoning Creek mouth issues behind a small river island and sits above the long curved lake-like upper pool of the Lehigh below the outlet of the gorge, and its delta's smoothly sloped sides made an attractive landing beach, giving name to the Inn.  With the popularity of the route and the roughness of the country, often called "“The Switzerland of America”" the location was a natural rest stop for the next leg to the north involved a steep climb and was over nine miles to the area of Beaver Meadows.  Hence early on it added" 'Landing Tavern' "to its nicknames.

Susquehanna and Tioga Turnpike: The Susquehanna and Tioga Turnpike; also called the Berwick and Tioga Turnpike, and Susquehanna & Tioga Turnpike connecting via the high ground of tributary valleys Berwick and upstream, Tioga—chartered & incorporated in 1806, the toll road, like many middle ages toll roads in Europe was opened initially as a animal power (foot traffic) turnpike in northeastern Pennsylvania (eventually) connecting early Central & Northern Eastern Pennsylvania along the Main Branch Susquehanna River to Lower New York State.  Established in the early American canal age, and undercapitalized , it took several years to gradually extend improved trails in stages 100 mi to Elmira, New York from its southern terminus at Berwick, Pennsylvania opposite Nescopeck across the Susquehanna River—in this manner it initially also sufficed as a bridle trail as well.  Where demand existed from sources of natural resources or farmers seeking to ship farm goods to markets, it was systematically widened and improved into a wagon road.

Supporting paragraphs: Great Wagon Road Great Appalachian Valley
Answer: Alabama