"Bellaire, O.- Steamboats conveying troops and munitions of war for the Federal forces on the Great…
"Bellaire, O.- Steamboats conveying troops and munitions of war for the Federal forces on the Great…
"Bellaire, O.- Steamboats conveying troops and munitions of war for the Federal forces on the Great…
"Bellaire, O.- Steamboats conveying troops and munitions of war for the Federal forces on the Great…
Diagram showing mountains and valleys due to block faulting in the background, and the dissection of…
True Bravery, the American Army at Valley Forge in 1777. Caption below illustration: "After mentioning…
"Section of a Limestone Cavern...A limestone hill, perforated by a cavern (b b) which communicates with…
"Section of a Limestone Cavern with fallen-in roof and concealed entrance." -Geikie, 1893
"Valley of the Chickahominy, looking southeast from the vicinity of Mechanicsville, the scene of the…
"Valley of the Chickahominy, looking southeast from the vicinity of Mechanicsville, the scene of the…
"Valley of the Chickahominy, looking southeast from the vicinity of Mechanicsville, the scene of the…
"Valley of the Chickahominy, looking southeast from the vicinity of Mechanicsville, the scene of the…
"Village of Clarksburg, Western Virginia, headquarters of General Rosecrans. Clarksburg, a post village,…
"Village of Clarksburg, Western Virginia, headquarters of General Rosecrans. Clarksburg, a post village,…
"Village of Clarksburg, Western Virginia, headquarters of General Rosecrans. Clarksburg, a post village,…
"Confederate position near Centreville, Va., at the crossing of the Orange and Alexandria Railway over…
"Battle of Cross Keys, Sunday June 8th, 1862- centre and front of the Federal army in the engagement.…
"Battle at Dam No. 4, Potomac River, between Butterfield's brigade and a large Confederate force. A…
"Battle at Dam No. 4, Potomac River, between Butterfield's brigade and a large Confederate force. A…
"Battle at Dam No. 4, Potomac River, between Butterfield's brigade and a large Confederate force. A…
A fault line valley. A fault line, is a planar fracture in rock in which the rock on one side of the…
"A reconnoitring detachment of General Banks's cavalry, Hyattstown, Md., in the distance. There are…
Diagram to illustrate the relationship of main and tributary glaciers. The surfaces of the two glaciers…
Diagrammatic section of the Marjelen Lake, the Aletsch Glacier which holds it and the valley of the…
In the valley glaciers, the rock fragments falling upon the ice from the valley sides, or sliding down…
Where two glacial streams unite, their adjoining lateral moraines become confluent and are continued…
Diagram showing the junction of the Oatka and Dale Valleys near Warsaw. The Dale is a hanging valley…
Old Parsonage and Church. This view is from the high plain on the right of the block-house, looking…
"Engagement between the Federal troops and the Confederates on the Virginia side of the Potomac, opposite…
"Cross section of Marsh Creek valley at McCammon, Idaho." -Lee, 1915
Roger's Rock. This sketch is from the lake, a little south of Cook's Point, seen just over the boat…
"Colonel Pilson's Battery shelling the rear guard of the Confederate General Jackson's Army, at the…
"Reconnoissance of the Confederate poistion at Strasburg, VA., by a detachment of cavalry under General…
"View of the town of Strasburg, valley of the Shenandoah, occupied by the Federal forces under General…
"View of the town of Strasburg, valley of the Shenandoah, occupied by the Federal forces under General…
"View of the town of Strasburg, valley of the Shenandoah, occupied by the Federal forces under General…
An image of what a regular valley would look like if it were cut to make a plateau and lowlands.