Longsleddale (/ˈlɒŋslɛdəl/) is a valley and civil parish in the Westmorland and Furness district of Cumbria, England.

The valley is bounded to the west by Kentmere Pike and Shipman Knotts, one arm of the Kentmere Horseshoe, and to the east by Sleddale Fell and its summits of Grey Crag and Tarn Crag; one of several Cumbrian hills named Great Howe is on the east of the valley above Sadgill.

Halfway between Garnett Bridge and Sadgill, Ubarrow Hall is a mediaeval pele tower, reduced in height, adjoining a 17th-century farmhouse.

[8] In January 2025, United Utilities confirmed Strabag Equitix Consortium as its preferred bidder to replace and maintain six tunnel sections of the aqueduct.

After a lengthy Parliamentary inquiry, the longer and steeper route over Shap Fell was chosen.

[citation needed] The centre's Adventure Activities Licensing Authority licence allows staff to run outdoor activities including: rock climbing, caving, ghyll scrambling (canyoning), hillwalking and archery.

Yewbarrow Woods were acquired by the Lake District National Park in the 1980s in order to maintain and secure the site.