When set for fractal, the noise modifier produces a random fractal noise that creates a variety of topological and terrain effects. In the parameters rollout noise group, turn on fractal. Roughness and iterations settings are now available. Increase Z–axis and adjust other parameters.
Step1: First of all, create a plane.
Fig.75
Step2: Click on modify tab then select noise tool.
Fig.76
Step3: After that, specify parameters.
Fig.77