Question: What ridge is part of the Appalachian Plateau
Context: The Kittanning Path was a major east-west Native American trail used crossing the Allegheny Mountains barrier ridge connecting the Susquehanna River valleys in the center of Pennsylvania to the highlands of the Appalachian Plateau and thence to the western lands beyond drained by the Ohio River.  The Kittanning Village was the first major Delaware Indian settlement along the descent off the Allegheny Plateau. The Kittanning Run is one of the several streams draining the Allegheny Plateau, each one cutting an abrupt valley, one of the gaps of the Allegheny— one of several climbing valleys used for centuries by the Amerindian native peoples to pass East-to-West through the Allegheny Front escarpment, a barrier ridge separating the flat highlands plateau, the Appalachian Plateau—from the many barrier ridges making up the local Ridge-and-Valley Appalachians in the Central Pennsylvania heartland. Broken Ridge or Broken Plateau is an oceanic plateau in the south-eastern Indian Ocean.  Broken Ridge once formed a large igneous province (LIP) together with the Kerguelen Plateau.  When Australia and Antarctica started to separate, Broken Ridge and the Kerguelen Plateau got separated by the Southeast Indian Ridge.  Alkalic basalt from Broken Ridge has been dated to 95 Ma. The Geology of Georgia consists of four distinct geologic regions, beginning in the northwest corner of the state and moving through the state to the southeast: the Valley and Ridge region, also known as the Appalachian Plateau; the Blue Ridge; the Piedmont and the Coastal Plain.  The Fall Line is the boundary between the Piedmont and the Coastal Plain. The Piedmont Mountains are outlying mountains, sometimes called “low mountains”, that typically occur in the western Piedmont near the Blue Ridge.  Most of the features within the Piedmont physiographic region of North America lie either on the eastern border where the plateau plunges onto the Coastal Plain at the Fall Line, in the broad valleys of the river systems, or on the western border where Piedmont Mountains likely occur.  Occasionally, due to diverse rock formations, folds and outcroppings, these mountains can rise at various locations across the Piedmont like the Uwharrie Mountain Range in North Carolina or the Pine Mountain Range in Georgia.  Most of these mountains, or hills, are what is left of ancient eroded mountains.  Some, like Stone Mountain in Georgia, are solitary rock domes called Monadnocks which become further exposed with erosion.  The Piedmont is part of the greater Appalachian Mountain Range and is also referred to as the Appalachian Plateau.  The French definition of piedmont in itself translates as foothill; however, a Piedmont Mountain may be that of greater significance or prominent elevation. The Wallkill Valley is a broad valley extending through southeastern New York and northwestern New Jersey.  It is composed of rolling hills, plains, and swamps (including the Black Dirt Region) surrounding the Wallkill River.  The valley is a subdivision of the larger Hudson Valley, bound to the west by the Shawangunk Ridge/Kittatinny Mountains and to the east by the Marlboro Mountains and New York–New Jersey Highlands.  The northern Wallkill Valley is sometimes associated with the greater Catskills region, although it is geographically separated from the Catskill Mountains by the Shawangunk Ridge and Rondout Valley.  In a broader sense, the Wallkill Valley is part of the Ridge-and-Valley physiographic province of the Appalachian Mountains, while the Catskills further to the north and west are part of the Appalachian Plateau. The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian division and are also a belt within the Appalachian Mountains extending from southeastern New York through northwestern New Jersey, westward into Pennsylvania and southward into Maryland, West Virginia, Virginia, Kentucky, Tennessee, Georgia and Alabama.  They form a broad arc between the Blue Ridge Mountains and the Appalachian Plateau physiographic province (the Allegheny and Cumberland Plateaus).  They are characterized by long, even ridges, with long, continuous valleys in between. Appalachian Ohio is a bioregion and political unit in the southeastern part of the U.S. state of Ohio, characterized by the western foothills of the Appalachian Mountains and Appalachian Plateau.  The Appalachian Regional Commission defines the region as consisting of thirty-two counties.  This region roughly overlaps with the Appalachian mixed-mesophytic forests, which begin in southeast Ohio and southwest Pennsylvania and continue to north Georgia and Alabama.  The mixed-mesophytic forest is found only in Central and Southern Appalachia and eastern/central China.  It is one of the most biodiverse temperate forests in the world. Walden Ridge (or Walden's Ridge) is a mountain ridge and escarpment located in Tennessee, in the United States.  It marks the eastern edge of the Cumberland Plateau and is generally considered part of it.  Walden Ridge is about 74 mi long, running generally north-south.  Its highest point is at Hinch Mountain (near Crossville), which reaches 3048 ft above sea level. The Cumberland Plateau is the southern part of the Appalachian Plateau in the Appalachian Mountains of the United States.  It includes much of eastern Kentucky and Tennessee, and portions of northern Alabama and northwest Georgia.  The terms "Allegheny Plateau" and the "Cumberland Plateau" both refer to the dissected plateau lands lying west of the main Appalachian Mountains.  The terms stem from historical usage rather than geological difference, so there is no strict dividing line between the two.  Two major rivers share the names of the plateaus, with the Allegheny River rising in the Allegheny Plateau and the Cumberland River rising in the Cumberland Plateau in Harlan County, Kentucky.
Answer: Walden Ridge