Colorado took part in the preliminary test of Dewey, a steel floating dry dock near Solomons Island, Maryland, from 23 to 24 June 1905.

[4] President Roosevelt held a Presidential Naval Review of a number of ships including Colorado, Florida, USS Indiana (BB-1), Truxtun, and transport Yankee at Oyster Bay, New York, from 2–4 September 1906.

After cruising to Japan and China to represent American interests in the Far East, she returned to San Francisco, on 27 September 1907, for exercises along the Californian and Mexican coasts, in the Hawaiian Islands, and off Central and South America.

Between August and November, she sailed to land and support expeditionary troops at Corinto, Nicaragua, then patrolled Mexican waters until placed in reduced commission at Puget Sound Navy Yard on 17 May 1913.

[4] Once more in full commission on 9 February 1915, she sailed as the flagship of the Pacific Reserve Fleet, patrolling in Mexican waters and observing and keeping in touch with interned merchant ships during the revolution.

[4] Pueblo returned to Norfolk, Virginia on 18 January 1918, and from 5 February – 16 October, made seven voyages to escort convoys carrying men and supplies to England.

After carrying the Brazilian ambassador to the United States to Rio de Janeiro, she returned to transatlantic duty, making six voyages between Hoboken and Brest, France, to bring home veterans of the American Expeditionary Force.