Question: At what height does State Route 160 start?

Passages:
State Route 160 (SR 160) is a primary state highway in the U.S. state of Virginia.  Known as the Trail of the Lonesome Pine, the state highway runs 8.02 mi from the Kentucky state line on top of Black Mountain, where the highway continues north as Kentucky Route 160 (KY 160), east to SR 68 in Appalachia. State Route 160 (SR 160) is an 18.415 mi state highway in Blount County, in the north-central part of the U.S. state of Alabama.  The western terminus of the highway is at an intersection with U.S. Route 31 (US 31) on the southern edge of Smoke Rise.  This intersection is just east of US 31's interchange with Interstate 65 (I-65 exit 284).  The eastern terminus of the highway is at an intersection with US 231 and Blount County Route 1 (CR 1) in Cleveland.  SR 160 is the only state highway that is exclusively located in Blount County. State Route 160 (SR 160) is a 7.47 mi long state highway serving Kitsap and King counties in the U.S. state of Washington.  The highway begins at an interchange with SR 16 in Port Orchard and travels east to the Southworth ferry terminal, where the route continues onto a ferry to Vashon Heights, the former southern terminus of SR 339, and further east to end at the Fauntleroy ferry terminal in Seattle. State Route 160 (abbreviated SR 160) is part of Maine's system of numbered state highways, located in the western part of the state.  It is a north–south highway running 32.64 mi from an intersection with State Route 5 in Limerick to an intersection with State Route 117 in Denmark. State Route 104 (SR 104) is a west–east state highway in California's Central Valley.  It connects State Route 99 near Galt to State Route 49 in Sutter Creek via the city of Ione.  It is known as Twin Cities Road from its western terminus up until just before Ione.  Heading west past its western terminus along Twin Cities Road will lead to Interstate 5 and eventually to an end at State Route 160 north of Walnut Grove. State Route 564, also known as SR 564, is a state highway in northern Arizona serving Navajo National Monument.  This highway travels from U.S. Route 160 to Betatakin Ruin; SR 564 derives its number from the former route number of the adjacent stretch of US 160, U.S. Route 164.  SR 564 ends at Betatakin; smaller roads travel beyond to Keet Seel. State Route 160 (SR 160) is a north–south state highway in the southeastern portion of the U.S. state of Ohio.  Its southern terminus is at SR 7 in Gallipolis, and the route heads north.  It meets U.S. Route 35 at an interchange with various collector and distributor ramps.  SR 160 southbound bypasses the interchange on a 0.739 mi road officially designated SR 160-A.  From there, the route passes through Vinton in northern Gallia County.  Following an intersection with SR 32, the route heads in a more westerly direction until it meets and its northern terminus is at State Route 93 in Hamden. State Route 220 (SR 220) is a state highway in the U.S. state of California, defined to run between State Route 84 and State Route 160 on Ryer Island.  At the eastern end of Ryer Island, the road crosses Steamboat Slough on the Howard Landing Ferry, a cable ferry. Kentucky Route 160, also known as KY 160, is a state highway in the U.S. state of Kentucky.  It runs from the Virginia state line, where the roadway continues east to Appalachia, Virginia as State Route 160, north via Lynch, Benham, Clutts, Cumberland, Sand Hill, Gordon, Linefork, Kings Creek, Premium, and Hot Spot to Kentucky Route 15 at Van.  KY 160 overlaps KY 15 through Isom to Cody, where it splits to run via Carr Creek, Brinkley, and Hindman, ending at Kentucky Route 1087 at Vest. Black Mountain is the highest mountain peak in the Commonwealth of Kentucky, USA, with a summit elevation of 4145 ft above mean sea level and a top to bottom height of over 2500 ft .  The summit is located at approximately in Harlan County, Kentucky near the Virginia border, just above the towns of Lynch, Kentucky and Appalachia, Virginia.  It is about 500 ft taller than any other mountain in Kentucky.

Supporting sentences:
State Route 160 (SR 160) is a primary state highway in the U.S. state of Virginia.  Known as the Trail of the Lonesome Pine, the state highway runs 8.02 mi from the Kentucky state line on top of Black Mountain, where the highway continues north as Kentucky Route 160 (KY 160), east to SR 68 in Appalachia. Black Mountain is the highest mountain peak in the Commonwealth of Kentucky, USA, with a summit elevation of 4145 ft above mean sea level and a top to bottom height of over 2500 ft .