boulders
Massive rounded rocks
Boulders are large rocks, typically rounded by weathering or water erosion.
The term implies rocks too big to move easily by hand—bigger than stones or cobbles.
Massive boulders lined the riverbed.
We scrambled over boulders to reach the summit.
Huge solitary standing stone
- cairnMemorial stone pile
- landformNatural terrain feature
- waypointNavigation reference location
- navigationDetermining position and course
guidepost · milestone · prominence · vista · scenic · balanced rock · erratic · standing stones
Igneous rock, quartz-rich
- basaltFine-grained volcanic stone
- quartziteMetamorphic silica-rich stone
- limestoneCarbonate sedimentary rock
- sandstoneCemented grain sediment
glacial · erosion · weathering · outcrop · formation · moraine · talus · scree
Obstruction preventing passage
- blockageObstruction halting movement
- impedimentThing that obstructs progress
- obstructionSomething blocking the way
- hazardSource of potential harm
rockslide · landslide · debris · roadblock · clearance · removal · impassable · strewn
monolith
Huge solitary standing stone
navigation · guidepost · milestone · prominence · vista · scenic · balanced rock · erratic · standing stones · dolmen
granite
Igneous rock, quartz-rich
- basaltFine-grained volcanic stone
- quartziteMetamorphic silica-rich stone
- limestoneCarbonate sedimentary rock
sandstone · glacial · erosion · weathering · outcrop · formation · moraine · talus · scree · sedimentary
barrier
Obstruction preventing passage
- blockageObstruction halting movement
- impedimentThing that obstructs progress
- obstructionSomething blocking the way
hazard · rockslide · landslide · debris · roadblock · clearance · removal · impassable · strewn · scattered
massive
Extremely large and heavy
immense · colossal · towering · mammoth · hefty · ponderous · weighty · megalith · imposing · formidable
chalk
Soft sedimentary writing stone
grip · smear · edging · overhang · mantle · sloper · pinch · foothold · handhold · problem
- riverscapesriverbank, riverbed, river bend, creek, brook
- rocky terraincliffs, scree, outcrops, rockfall, rock faces
- Joshua TreeJoshua trees, yuccas, yucca, rock formations, Mojave Desert
- loose rockscree, talus, rubble, debris, gravel
- quarryingquarry, quarryman, quarry worker, quarrying, stone blocks
- rock gardensrock garden, rockeries, rockery, alpine garden, rocks
- granite bouldersLarge igneous rock pieces
- boulder fieldArea covered with large rocks
- boulder holderBrassiere, jokingly named
- bouldering wallArtificial surface for ropeless climbing
boulder, bouldering, bouldered, bouldery, boulderer, boulderers