A rockfall or rock-fall is a quantity of rock that has fallen from a cliff face or from the roof or walls of mine or quarry workings. [1][2]

Jul 27, 2006 · Rockfall hazard zones occur throughout the park near any cliff faces. If you witness a rockfall from the Valley floor, quickly move away from the cliff toward the center of the Valley.

Jul 20, 2023 · Rockfalls are abrupt movements of masses of geologic materials, such as rocks and boulders, which become detached from steep slopes or cliffs. Separation occurs along discontinuities …

Aug 10, 2025 · Managing rockfall hazards involves identifying risk areas, implementing mitigation techniques, and having emergency plans in place. These steps help minimize damage to structures …

A rockfall is a type of fast-moving landslide that happens when rock or earth falls, bounces, or rolls from a cliff or down a very steep slope. Rockfalls start from high outcrops of hard, erosion-resistant rock …

Aug 18, 2025 · So, what exactly is a rockfall? The rockfall meaning refers to the downward movement of individual rocks or boulders from a cliff or steep slope. It usually happens when a rock becomes …

Rockfalls are primarily driven by gravity and can occur when loose materials on a steep slope become destabilized due to factors like weathering, rainfall, or earthquakes. These events fall under the …

Jun 11, 2018 · Rockfall is a form of mass movement or mass wasting in which pieces of rock travel downward through some combination of falling, bouncing, and rolling after they are initially separated …

Other articles where rockfall is discussed: mass movement: …of solid rock, known as rockfalls; several types of almost imperceptible downslope movement of surficial soil particles and rock debris, …

Apr 11, 2009 · Rockfall is a natural mass-wasting process that involves the dislodging and rapid downslope movement of individual rocks and rock masses. The widespread combination of steep …