Limestone Landscapes and Map Interpretation

This video tutorial by Mr. Mercer covers the basics of recognizing limestone landscape features on OS maps. It explains how to identify features like scars, caves, pavements, potholes, intermittent drainage, and resurgent streams. The tutorial also discusses the importance of map scales and provides tips for effective map work, emphasizing the use of names and grid references for evidence.

What is the scale of the map being discussed initially in the video?

• 1:50,000

• 1:25,000

• 1:100,000

• 1:10,000

Which word on a map indicates the presence of a limestone scar?

• Cave

• Stream

• Scar

• Pavement

What is a good method for providing map evidence besides using grid references?

• Using color codes

• Naming the feature

• Measuring distances

• Drawing symbols

What symbol should you look for to identify a limestone pavement on a map?

• Rock outcrop symbol

• Building symbol

• Water symbol

• Tree symbol

What natural process causes potholes in limestone landscapes?

• Volcanism

• Carbonation

• Erosion

• Sedimentation

What is intermittent drainage in limestone landscapes?

• A stream that disappears and reappears

• A stream that flows continuously

• A dry riverbed

• A waterfall

Where do resurgent streams typically reappear in limestone landscapes?

• At the bottom of a limestone scar

• In the middle of a forest

• In a desert

• At the top of a hill

What are shake holes in limestone landscapes?

• Large boulders

• Partially collapsed sinkholes

• Mountain peaks

• Deep lakes

What should you do after identifying a limestone pavement on a map?

• Look for other nearby features

• Ignore other features

• Erase it from the map

• Mark it with a red pen

What is the key advice given for successful limestone map work?

• Focus only on one feature

• Panic if you can't find features

• Join up as much of your map work as possible

• Use only grid references