Lancaster Valley AVA
{{Use mdy dates|date=April 2021}}
{{Infobox wine region
| name = Lancaster Valley AVA
| image = Lancaster Valley Pennsylvania.jpg
| caption = The Lancaster Valley near the Susquehanna River Valley
| official name =
| other name =
| type = American Viticultural Area
| format=Title 27: Alcohol, Tobacco and Firearms; Part 9 — American Viticultural Areas; Subpart C — Approved American Viticultural Areas |access-date=2008-02-05 }}
| wine years =
| country = United States
| part of = Pennsylvania
| similar =
| sub regions =
| season =
| climate region = Continental/humid subtropical
| heat units =
| precipitation =
| soil = Karst
| total size = {{convert|225000|acre|ha|0}}{{cite web |website=Wine Institute |date=2008 |url=http://www.iwineinstitute.com/ava/avabystate.asp |title=American Viticultural Areas by State |archive-url=https://web.archive.org/web/20080127115948/http://www.iwineinstitute.com/ava/avabystate.asp |archive-date=2008-01-27 |access-date=2008-02-05 }}
| vineyards =
| grapes = Cabernet Franc, Catawba, Cayuga, Chambourcin, Chancellor, De Chaunac, Merlot, Niagara, Seyval blanc, Vidal blanc, Vignoles
| varietals =
| wine produced =
| designation =
| comments =
}}
The Lancaster Valley AVA is an American Viticultural Area located in Lancaster and Chester counties of southeastern Pennsylvania, centered on the city of Lancaster. The wine region includes {{convert|225000|acre|ha|0}} in a valley that is roughly {{convert|30|mi|km|0}} long and {{convert|12|mi|km|0}} wide, although only {{convert|400|acre|ha|0}} are planted to grapevines. The Lancaster Valley area is one of the most fertile agricultural areas in Pennsylvania, and features rich topsoil over limestone bedrock. It has a hot-summer humid continental climate (Dfa) and is located in hardiness zone 7a.