This is the 1146th most frequent German word.
berg
Mountain.
In this sentence, 'Berg' refers to a geographical feature, specifically a mountain where activities like hiking can be done.
Ich wandere gern auf dem Berg.
I enjoy hiking on the mountain.
Here, 'Berg' represents the physical land formation as a contextual location near which the city is positioned.
Die Stadt liegt am Fuße des Berges.
The city is located at the base of the mountain.
In this idiom, 'Berg' metaphorically symbolizes a large amount of something, emphasizing the workload size.