Large and very detailed map that describes all railroads west from Lake Michigan. Names hundreds of railroads with the lines of the Union Pacific and Southern Pacific shown in overprinted color. Legend with seven different colors locate operational lines and those under construction. Also locates through color the San Pedro, Los Angeles & Salt Lake system, as well as other lines half owned by the Union Pacific. The detailed insets show the rail lines in the vicinity of Los Angeles, San Francisco, and Portland, Oregon. All state boundaries are outlined in attractive yellow wash coloring. Folds into printed wrapper titled, " Tenth Annual Report of the Union Pacific Railroad Company for the Year Ending June 30, 1907 "

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Condition: A

Map is fine with only one fold intersection split. Paper coves are soiled with tears at edges and small portion missing at spine.