Identifying Mass Movement Types The four main types of mass movements are fundamentally differentiated based on their style of motion and water content as follows: Falls and avalanches: free-falls through the air, minimal, if any water involved. Landslides: slides along the ground, with some water, but not saturated. Flows: flow along the ground because they have high water content. Creep: slow, gradual motion along the ground, with variable water content. You are a geoscience consultant tasked with classifying the different types of mass movements found in your jurisdiction. You don’t have time to go see them yourself, so you must rely on sketches made by team members. Drag the appropriate labels to their respective targets.