Grand Canyon #2 Arizona
Fault Near Parhump, Nevada April, 1978
Overthrust Fault Arizona October, 1984
Crossbedded Sandstone Zion National Park, Utah
Columnar Jointing #3 Devil's Postpile National Monument
Granite Gorge in the Grand Canyon On the Colorado River by Phantom Ranch, Mile 88 April, 1989
Fumeroles and Hot Springs #3 Bumpass Hell, Lassen National Park August, 1978
Granite arch Baja, California January, 1980
Joint Plane: Vernal Falls in Winter
Physical Weathering in Granite
Salt Crystals
Arches in Sandstone
Vasey's Paradise #2 Colorado River September, 1985
Goosenecks of the San Juan River Near Mexican Hat, Utah October, 1983
Aerial view of river meanders and some riparian vegetations Along the San Joaquin River, California March, 1989
Alpine Glacier & Moraines Landmark Coll September 1974
An aerial photo of marshes taken from a float plane over the birdfoot delta of the Mississippi River.
Stalactites and stalagmites often merge, forming a “column”.
What are landforms? Landforms are physical features formed naturally on the Earth’s surface. Landforms are created naturally.
What are some examples of landforms? CanyonsMountains Rock cliffsRivers BeachesLakes
Landforms are formed by: 1. Tectonic p lates colliding together to form mountains. (sometimes causes earthquakes)
2. Plates pulling apart to form rivers, lakes and oceans.
3. Plates sliding past each other to form faults.
Can these landforms change over time? Or are they permanent? Landforms change constantly due to ……
1.Weathering 2.Erosion 3.Deposition (Those definitions will come later!)