In the UK, what section of the Girl Guides is for 14 to 18 year olds?

A Ranger or Ranger Guide is a member of a section of some Guiding organisations who is between the ages of 14–18. It is the female-centred equivalent of the Rover Scouts.

Girl Guiding had officially been founded in 1910 in the United Kingdom. By 1916–17, it had become apparent that girls who had been Girl Guides from the start were getting too old for their companies, and that older girls wished to become Guides but did not fit well in companies of younger girls. "Senior Guides" slowly came into existence as some captains (adult leaders of companies) formed patrols of girls over 16 years old.

Robert Baden-Powell, the founder of Scouting and Guiding, was interested in this development and in June 1917 asked Rose Kerr to take on responsibility for them, outlining to her a plan for them. The scheme for the Senior Guides was published in parts in 1918.

Rangers have a long history in the United Kingdom, but their name was changed to "Senior Section", but has now been changed back. In Girlguiding UK, Rangers is replacing The Senior Section (TSS). Rangers can belong to Units in the same way as Rainbows, Brownies or Guides belong to Units. Rangers is open to girls from 14 to 18 years old. They can pursue any or all of several schemes including The Queen's Guide and the Duke of Edinburgh's Award.