The site of the historic Empire Mine, now a state historic park in Grass Valley, California
1 photograph : digital, tiff file, color.
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1 photograph : digital, tiff file, color.
1 photograph : digital, tiff file, color.
1 photograph : digital, tiff file, color.
1 photograph : digital, tiff file, color.
Sketch map of the first railroad in California, with projected extensions to San Francisco, Sonora, and Tehama, made by the engineer who built the Sacramento Valley Railroad.
Map of Louisiana and Mississippi showing drainage, cities and towns, township and county boundaries, and the railroad network, with emphasis on the main line.
Outline map of the middle Atlantic states showing the three major lines in different colors. Indicates major drainage, cities and towns, and names the railroads along the lines.
Map of the eastern United States showing relief by hachures, drainage, cities and towns, and the railroad network emphasizing the main lines.
Topographic strip map of the Hudson River Valley from Waterford to New York City, showing drainage, relief by hachures, county and township boundaries, cities and towns, roads and canals. Indicates the track of the Hudson River Railroad and the "line surveyed but not adopted." Chartered in 1846 and consolidated with New York Central Railroad. See entries 486-488.
Outline map of the northeastern and north-central United States showing "railroads completed or in progress" and "railroads proposed & authorized unless named as 'projected.'"
Shows eastern United States and includes relief by hachures, drainage, cities and towns, county boundaries, and the railroad network in red.
Map of the southern United States showing drainage, cities and towns, state boundaries, table of distances, and the railroads distinguished by color.
Detailed map of the north-central and Great Lakes region showing drainage, cities and towns, township and county boundaries, coal fields, names of railroads, and the railroad network.
Map of the middle Atlantic states showing relief by hachures, drainage, cities and towns, counties, and the railroad network.
Map of Pennsylvania from Philadelphia north to the New York boundary and west to Williamsport. Shows county boundaries, drainage, coal field, important cities, and the existing and proposed railroads. Chartered in 1835 as the Little Schuylkill and Susequehanna Railroad.
1929 - Jul 1950 Vol. 9. 105 sheet(s). 008. Other places as they appear on original: Tarrant City, Homewood, Hollywood, Territory South of Birmingham known as Shades Valley.
Map of Pennsylvania and parts of adjacent states showing the railroad network, cities, towns, railroad stations, canals, and coal fields.
"President Abraham Lincoln signed the Pacific Railroad Act into law on July 1, 1862. The act gave two companies, the Union Pacific Railroad and the Central Pacific Railroad, responsibility for completing the transcontinental railroad. The Union Pacific was to lay track westward from a point near Omaha, Nebraska, toward Ogden, Utah; the Central Pacific was to build eastward from Sacramento, California. The Union Pacific began construction on December 2, 1863. This map, submitted to Secretary of Interior James Harlan on September 18, 1865, by Lieutenant Colonel J.H. Simpson of the Army Corps of Engineers, shows the different routes between the Missouri River and the Platte Valley in Nebraska surveyed for the Union Pacific. Based on a map submitted by Silas Seymour, consulting engineer to the Union Pacific, the map shows five alternative routes with probable connections to existing railroads. Also shown are relief by hachures, county boundaries, drainage, vegetation, and roads. Nebraska was at this time a territory; it became the 37th state on March 1, 1867. Under the authorizing legislation, the railroad was not to have grades or curves exceeding the maximums on the Baltimore & Ohio Railroad, the first U.S. railroad to cross the Appalachians. This profile shows the careful attention paid by the engineers to the steepness of the grades on alternative routes considered for the line. The horizontal scale shown is one mile to one inch (1.61 kilometers to 2.54 centimeters), and the vertical scale is 60 feet to one inch (18.28 meters to 2.54 centimeters). The profile accompanied a topographic map showing five different routes between the Missouri River and the Platte Valley in Nebraska, which was part of a report submitted to Secretary of Interior James Harlan by Lieutenant Colonel J.H. Simpson of the Army Corps of Engineers." World Digital Library. Detailed map of Nebraska showing relief by hachures, drainage, vegetation, roads, and railroads.