"Columnar structure in the basalt of the main sheet, south end of East Hill Cliff, near South Britain, Connecticut." -Walcott, 1901

Basalt

"Columnar structure in the basalt of the main sheet, south end of East Hill Cliff, near South Britain,…

Chopping tools used as hand axes in the Chellean age.

Chellean Age Chopping tools

Chopping tools used as hand axes in the Chellean age.

Cromlech is a Brythonic word (Breton/Welsh) used to describe prehistoric megalithic structures, where crom means "bent" and llech means "flagstone".

A Scandinavian Cromlech

Cromlech is a Brythonic word (Breton/Welsh) used to describe prehistoric megalithic structures, where…

A hand-generated rock crusher. Generally used to reduce rock to grainy substance in order to analyze it with greater accuracy.

Rock Crusher

A hand-generated rock crusher. Generally used to reduce rock to grainy substance in order to analyze…

A granite quarry.

Granite

A granite quarry.

"Eddystone is a group of gneiss rocks, daily submerged by the tide, in the English Channel, 9 miles off the Cornish coast, and 14 S.S.W. of Plymouth Breakwater. The frequent shipwrecks on these rocks led to the erection of a lighthouse on them in 1669-1700, but the great storm of Nov. 20, 1703 completely washed it away. Another lighthouse was built in 1706-1709. This was burned in 1755. The next, noted for its strength and the engineering skill displayed in it, was constructed in 1757-1759. The granite was dovetailed into the solid rock, and each block into its neighbors. As the rock in which this tower was built became undermined and greatly weakened by the action of the waves, the foundation of another was laid on a different part of the reef in 1879. Its light is visible in clear weather at a distance of 17 and one half miles."—(Charles Leonard-Stuart, 1911)

Eddystone Lighthouse

"Eddystone is a group of gneiss rocks, daily submerged by the tide, in the English Channel, 9 miles…

A marble quarry.

Marble

A marble quarry.

A scene in the mountains with trees and water running by.

Mountain

A scene in the mountains with trees and water running by.

A mountain pass with a caravan passing through it.

Mountain-Pass

A mountain pass with a caravan passing through it.

The great low plain of North America lies between the Atlantic system on the east and the Pacific system of the west.

Plains

The great low plain of North America lies between the Atlantic system on the east and the Pacific system…

In prehistoric times, a woman finds sleeping men from a different tribe and studies them.

Prehistoric People

In prehistoric times, a woman finds sleeping men from a different tribe and studies them.

"The impressions of the large rain-drops of a short shower made on a half-dry mud, have often been preserved in the rocks." -Dana, 1883

Rain Prints

"The impressions of the large rain-drops of a short shower made on a half-dry mud, have often been preserved…

Section of the rift valley of the Rhine. 1) granite; 2-7)Mesozoic rocks; 8,9) Tertiary and recent.

Rift Valley of the Rhine

Section of the rift valley of the Rhine. 1) granite; 2-7)Mesozoic rocks; 8,9) Tertiary and recent.

This sign is used to indicate that rock collecting is located nearby.

Rock Collecting, Black and White

This sign is used to indicate that rock collecting is located nearby.

This sign is used to indicate that rock collecting is located nearby.

Rock Collecting, Color

This sign is used to indicate that rock collecting is located nearby.

This sign is used to indicate that rock collecting is located nearby.

Rock Collecting, Outline

This sign is used to indicate that rock collecting is located nearby.

This sign is used to indicate that rock collecting is located nearby.

Rock Collecting, Silhouette

This sign is used to indicate that rock collecting is located nearby.

Illustration of curved and contoured rocks near Old Head of Kinsale.

Contoured Rocks

Illustration of curved and contoured rocks near Old Head of Kinsale.

A diagram of the interrelations of the Exogenetic rocks.

Exogenetic Rocks

A diagram of the interrelations of the Exogenetic rocks.

An illustration of a group of three rocks.

Group of Rocks

An illustration of a group of three rocks.

A spring with a bird in front of it.

Spring

A spring with a bird in front of it.

Three pictures of early stone implements during the Mousterian age.

Mousterian Age stone implements

Three pictures of early stone implements during the Mousterian age.

Early stone implements use by true men during the Reindeer age. These stones include scrapers and points.

Reindeer Age Stone Implements

Early stone implements use by true men during the Reindeer age. These stones include scrapers and points.

Three views of a rostro-carinate (earliest period) Paleolithic stone implement. All roughly drawn to scale.

Paleolithic Stone

Three views of a rostro-carinate (earliest period) Paleolithic stone implement. All roughly drawn to…

A series of diagrams showing the development of the Chief Mountain thrust. The older rocks from which the mountains are cut are represented by cross-lines, the younger rocks of the plains in white.

The Chief Mountain Thrust of Montana

A series of diagrams showing the development of the Chief Mountain thrust. The older rocks from which…

A scene from Kipling's Wee Willie Winkie.

Wee Willie Winkie

A scene from Kipling's Wee Willie Winkie.