The highest pub in England (and the UK for that matter) is the Tan Hill Inn, located in the Yorkshire Dales.
The Tan Hill hit headlines eary in 2010 when 30 or so revellers were snowed in whilst celebrating new years eve, they were 'stuck' there for several days until the managed to 'escape' poor people!

Here is a breakdown of other places to you can have a drink at altitude across the country :

England

• Tan Hill Inn, North Yorkshire : 1,700ft (518m)
• Cat & Fiddle, Buxton : 1,690ft (515m)
• Travellers Rest, Buxton : 1,500ft (457m)
• Kirkstone Pass Inn, Cumbria : 1,480ft (451m)

Scotland

• Wanlockhead Inn, Wanlockhead : 1440ft (439m)
• Lead Hills Pub, Lead Hills : 1310ft (399m)
• Richmond Arms Hotel, Tomintoul : 1110ft (338m)

Wales

• Sportsman's Arms, Denbigh : 1430ft (436m)
• Lamb & Fox, Blaenavon : 1370ft (418m)
• Tafarn Ty Uchaf, Trefil : 1310ft (399m)
• Pen-y-Gwyrd Hotel, Snowdonia : 900ft (274m)

This question was submitted by : HardBoiled