Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
The base of a hill located beside a river is 300m above the seabed. If this depth is a quarter of the vertical distance between the riverbed and the peak of the hill, how high is the hill?

### Response:
The distance from the riverbed to the hill's peak is 300m / (1/4) = <<300/(1/4)=1200>>1200m.
The height of the hill is 1200m - 300m = <<1200-300=900>>900m.
#### 900