Steve Hoey, CEO of Turning Lives Around, has challenged himself to climb one hundred hills in 2026 to raise funds for our charity, which supports people who have been homeless or at risk of homelessness.

He'll probably bag a few mountains too! The general rule in the UK is that a hill is any natural elevation of land that is lower than 2,000 feet (609.6 metres). Once a peak reaches 2,000 feet, it is typically classified as a mountain. There are 15 'hills' in Yorkshire that cross the mountain threshold.

For a hill to be officially listed in geographical databases, it usually needs a certain amount of prominence (also known as "drop" or "re-ascent"). This ensures that a small bump on the side of a larger mountain isn't counted as its own hill.

• Marilyns: A hill of any height with a drop of at least 150 metres on all sides.

• Humps: Hills with a drop of at least 100 metres.

• Tumps: Hills with a drop of at least 30 metres.

We'll keep you updated with Steve's progress over mountains, marilyns and humps here!