along
If you look or move along something long and narrow such as a road, a river, or a corridor, you look or move towards one end of it.
Tim walked along the street.
He led me along a corridor.
If something is situated along something long and narrow such as a road, a river, or a corridor, it is situated in it or beside it.
There are trees all along the river.
Be careful
Don't use ‘along’ to describe movement from one side of an area to another. For example, don't talk about going ‘along’ a desert. Instead you use through or across.
Don't use ‘along’ to describe movement from one side of an area to another. For example, don't talk about going ‘along’ a desert. Instead you use through or across.
We cycled through the forest.
He wandered across Hyde Park.
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