The Shenandoah Valley is a geographic valley and cultural region of western Virginia and the Eastern Panhandle of West Virginia in the United States.
 The valley is bounded to the east by the Blue Ridge Mountains, to the west by the eastern front of the Ridge-and-Valley Appalachians (excluding Massanutten Mountain), to the north by the Potomac River and to the south by the James River.
 The cultural region covers a larger area that includes all of the valley plus the Virginia highlands to the west, and the Roanoke Valley to the south.
 It is physiographically located within the Ridge and Valley province and is a portion of the Great Appalachian Valley.
Clark State Forest, located just north of Henryville, Indiana in the United States, is Indiana's oldest state forest, formed in 1903 as a forest research facility and a nursery and later expanded by the Works Progress Administration.
 Originally 2,028 acres (8 km²) of total land area, it is now almost 24000 acre and is bisected by Interstate 65.
 It features three trails used exclusively for hikers trails: two internal trails, and the 59 mi Knobstone Trail.
 There are nine horse trails, and five miles (8 km) of mountain bike trails.
 Two nature preserves are also situated within the forest.
 The forest also contains a 100 yd outdoor gun range.
The Cumberland Valley is a northern constituent valley of the Great Appalachian Valley, within the Atlantic Seaboard watershed in Pennsylvania and Maryland.
 The Appalachian Trail crosses through the valley.
The Great Indian Warpath (GIW)—also known as the Great Indian War and Trading Path, or the Seneca Trail—was that part of the network of trails in eastern North America developed and used by Native Americans which ran through the Great Appalachian Valley.
 The system of footpaths (the Warpath branched off in several places onto alternate routes and over time shifted westward in some regions) extended from what is now upper New York state to deep within Alabama.
 Various Indians traded and made war along the trails, including the Catawba, numerous Algonquian tribes, the Cherokee, and the Iroquois Confederacy.
 The British traders' name for the route was derived from combining its name among the northeastern Algonquian tribes, "Mishimayagat" or "Great Trail", with that of the Shawnee and Delaware, "Athawominee" or "Path where they go armed".
Trail trees, trail marker trees, Crooked Trees, "Prayer Trees", "Thong Trees", or "Culturally Modified Trees" are hardwood trees throughout North America that Native Americans intentionally shaped with distinctive characteristics that convey that the tree was shaped by human activity rather than deformed by nature or disease.
 A massive network of constructed pre-Columbian roads and trails has been well documented across the Americas, and in many places remnants can still be found of trails used by hunters and gatherers.
 One unique characteristic of the trail marker tree is a horizontal bend several feet off the ground, which makes it visible at greater distances, even in snow.
 Even today, modern hunters look for horizontal shapes while hunting deer, elk, and moose.
 A Dr. Janssen noted in 1941: "Among the many crooked trees encountered, only a few are Indian trail markers.
 The casual observer often experiences difficulty in distinguishing between accidentally deformed trees and those [...] purposely bent by the Indians.
 Deformities may occur in many ways.
 A large tree may fall upon a sapling, pinning it down for a sufficient length of time to establish a permanent bend.
 Lightning may split a trunk, causing a portion to fall or lean in such a way as to resemble an Indian marker.
 Wind, sleet snow or depredations by animals may cause accidental deformities in trees.
 However, such injuries leave scars which are apparent to the careful observer, and these may serve in distinguishing such trees from Indian trail markers."
The Blue Ridge Mountains are a physiographic province of the larger Appalachian Mountains range.
 This province consists of northern and southern physiographic regions, which divide near the Roanoke River gap.
 The mountain range is located in the eastern United States, starting at its southernmost portion in Georgia, then ending northward in Pennsylvania.
 To the west of the Blue Ridge, between it and the bulk of the Appalachians, lies the Great Appalachian Valley, bordered on the west by the Ridge and Valley province of the Appalachian range.
Dos Vientos Open Space is a 1,216 acres open space area in western Newbury Park, California.
 It contains more than 41 miles of trails used for cycling, hiking and equestrians.
 Originally a part of the Rancho Guadalasca Spanish Land Grant of 1836, the area is now an important wildlife movement corridor into the Santa Monica Mountains through the Point Mugu State Park.
 It provides a habitat for a variety of wildlife, including bobcats, mule deer, coyotes, eagles, hawks, barn owls, mountain lions, and more.
 It provides regional and internal trail connections, many trails offering panoramic views of the Conejo Valley, Oxnard Plain, Topatopa Mountains, Channel Islands, and the Pacific Ocean.
 Some of the endangered plant species found here include Conejo Buckwheat, Verity's liveforever, and Conejo Dudleya.
 The landscape is undeveloped, and dominated by coastal sage scrub, grassy hillsides, oak woodlands, and chaparral habitats.
The Ordovician Martinsburg Formation (Om) is a mapped bedrock unit in Pennsylvania, New Jersey, Maryland, Virginia, and West Virginia.
 It is named for the town of Martinsburg, West Virginia for which it was first described.
 It is the dominant rock formation of the Great Appalachian Valley in New Jersey (where it is called Kittatinny Valley and Pennsylvania (in the Lehigh Valley and Lebanon Valley).
Warriors Path State Park is a Pennsylvania state park on 349 acre in Liberty Township, Bedford County, Pennsylvania, in the United States.
 It is named for the Great Indian Warpath that was used by the Iroquois in war raids with the Cherokee and other tribes.
 Warriors Path State Park is surrounded on three sides by the Raystown Branch Juniata River.
 The park is a seasonal day use park.The park can be accessed by foot from the main gate when the gate is closed November through mid April.
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.

Question: Which state is the state park, which is named after the network of trails used by Native Americans to navigate through the Great Appalachian Valley, located?
Answer: Pennsylvania