Ben Whitehead        Expedition Skills        Assignment 1

Expedition Skills.

P1 – Explain the advantages and disadvantages of a range of suitable maps to be used during an expedition including a full description of the meaning of conventional map symbols.

OS (Outdoor Leisure) –

These maps are popular for walkers and ramblers.

1:25,000

Advantages:

  • Distances are easy to judge, this is because of the blue grid squares across the map, each square counts for 1km on the map.
  • Grid references can be given.
  • Plenty of detail on the maps, footpaths etc.
  • Information on terrain and land use.
  • Suitable for shorter walks.

Disadvantages:

  • Too much detail for novice walkers. Some details such as contour lines are hard to see in bad light.
  • Area of ground the map covers is quite small. Not suitable for a long expedition.
  • Hard to handle in bad weather, too large and fragile also.

OS (Landranger) –

This is a medium - scale all-purpose map.

1:50,000

Advantages:

  • The scale is large enough for it to show most relevant detail for expeditions.
  • Distances are easy to judge, this is because of the blue squared grid across the map.
  • Grid references can be given.
  • Contours are clear.
  • Maps are more robust than 1:25,000
  • Suitable for long walks.

Disadvantages:

  • Not as much detail as the 1:25,000 scale as small features such as walls and minor paths aren’t included.
  • Relatively expensive.
  • Less information about the land than a 1:25,000 scale map.

Harvey walking maps –

These maps are specifically made for walkers.

1:25,000 or

1:40,000

Advantages:

  • Information given is chosen for tourists, walkers and ramblers.
  • Information is printed more clearly than on OS maps.
  • 1:40,000 scale is good for long distance walks.
  • Cheaper than the OS maps.
  • Relatively weatherproof.
  • Contains information on camping, food, walking/clothing tips.

Disadvantage:

  • The 1:25,000 scale maps has less detail about walls etc. than the OS maps.

Map Symbols:

     Symbols are drawn on maps as it saves space on the map. They are easy to use and identify, i.e. PH is a pub (Public House). The symbols that are used on the maps are explained on the map, usually at the top, in a key.

     A 1:25,000 scale map would mean for every 4cm on the map it would be 1km on the ground.

On some maps they have contour lines these stand for the height of the land.       There is a number in between the brown lines in metres labelling how high or low the land is. If the brown contour lines are close together it means the land is steep but if they are further apart it means that the land is less steep and if there are no contour lines at all, the land is flat.

To explain myself further I have enclosed a sheet detailing map symbols and what they mean:

The blue grids that are covering certain maps are used for:

  • Distances on the map, one square equals 1km on a 1:25,000 scale map.
  • It shows which way north is.
  • Enables you to pinpoint a location within at least 100metres by using grid reference. There are also lines identifying latitude and longitude along the sides of OS map scale 1:25,000 and 1:50,000.

As you can OS map symbols use pictures to describe place on a map. Above you can see different pictures for different places of worship.

P4 – Describe the equipment and materials taken on an expedition.

For an expedition you need to be well prepared and must take anything that will help you and get rid of anything that wont. Depending on where your going and what the weather forecast is you will take different equipment and different materials. For instance if you were on a short expedition across some hills in the height of summer your not likely to take much equipment, just the bare essentials as it is only a short walk.

Personal Equipment:

Such as boots, socks, shorts, shirt, trousers, gloves, hat, jacket, rucksack, knife, compass, food, hot & cold drink, money etc.

Boots – For any sort of walk you need to have good walking boots. They should be waterproof but most of all comfortable if they are not comfortable, your obviously going to find it hard to walk long distances. Boots that are GORE-TEX are waterproof but are also a breathable shoe.

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Jacket – A good jacket should definitely be waterproof, but again has to also fit properly and be comfortable. The jacket should be sealed all around to keep out the wind and rain etc. It should also be lightweight as you are wearing it whilst walking around. The jacket should also be easy to store in your bag. It should also have a lot of pockets and compartments to put important belongings such as maps and compasses.

Trousers – Again they have to be waterproof and lightweight. They should be easy to store and easy to get off ...

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