To install click the Add extension button. That's it.

The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. You could also do it yourself at any point in time.

Kelly Slayton
Congratulations on this excellent venture… what a great idea!
Alexander Grigorievskiy
I use WIKI 2 every day and almost forgot how the original Wikipedia looks like.
Live Statistics
English Articles
Improved in 24 Hours
Added in 24 Hours
What we do. Every page goes through several hundred of perfecting techniques; in live mode. Quite the same Wikipedia. Just better.

Colsterdale towers

From Wikipedia, the free encyclopedia

Front view
Front view
Side view
Side view

The Colsterdale towers are a set of sighting towers in and around Colsterdale, North Yorkshire, England.

These sighting towers were used to conduct surveys during the construction of Leighton reservoir and Roundhill reservoir, other proposed reservoirs and accompanying pipelines.[1]

Visible from Roundhill Reservoir and Leighton Reservoir above Arnagill Crags is a stone sighting tower built over an aqueduct near a water pumping station.[2] The similar Carle Tower is situated 1.9 miles (3 km) southeast just above Wandley Gill,[3] Carlesmoor Sighting Tower is a further 1.2 miles (2 km) east[4] and another sighting tower to the north is long since gone having been constructed of wood. The Greygarth Monument is also in the area,[5] commemorating Queen Victoria's Diamond Jubilee in 1897.


The sighting towers were erected to conduct surveys (the steep-sided valley of Dallowgill was once a proposed reservoir site) and as references for construction of the pipeline over hill and dale toward Harrogate. The pipe begins at the bottom of a small catchments reservoir above Spout Gill Farm and flows to Roundhill Reservoir, where it meets with the dam overflow pipe that runs to Carlesmoor and empties into the River Laver.


The reservoirs were built by the Harrogate Water Corporation between 1895 and 1911. The Leeds Corporation explored construction of another reservoir to the north-west in Colsterdale but the proposal was rejected due to concerns over lead and coal mines in the area. The narrow-gauge Colsterdale Waterworks Light Railway built in 1901 as a supply line from Masham to Roundhill Reservoir closed in 1926 and was removed in 1932 (after being used during World War I for troop transport to the Leeds Pals camp at Breary Banks just north of Leighton) but is still evident on the south side of the dale.


  1. ^ Historic England. "Sighting Tower (1391550)". National Heritage List for England. Retrieved 27 July 2018.
  2. ^ grid reference SE159769
  3. ^ SE176743
  4. ^ SE195736
  5. ^ SE185723

External links

This page was last edited on 3 October 2019, at 20:43
Basis of this page is in Wikipedia. Text is available under the CC BY-SA 3.0 Unported License. Non-text media are available under their specified licenses. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc. WIKI 2 is an independent company and has no affiliation with Wikimedia Foundation.