The SS Mariposa was an iron steam passenger and cargo liner constructed in 1883 by William Cramp & Sons Shipbuilding Company in Philadelphia. With a gross register tonnage of approximately 3,000 tons, the vessel was designed to serve the maritime routes across the Pacific Ocean. Originally built for the Oceanic Steamship Company—founded in 1881 by John D. Spreckels & Brothers—the Mariposa primarily operated between San Francisco and Honolulu, Hawaii. Over time, her service expanded to include routes to Australia and New Zealand, reflecting her importance in regional maritime commerce and passenger travel. The vessel’s construction and design exemplified the late 19th-century shift toward iron-hulled ships, offering a combination of passenger comfort and cargo capacity suitable for the demanding Pacific routes. She served reliably for nearly 34 years before being sold in 1912 to the Alaska Steamship Company, though she retained her original name. Notable events in her service history include her role in rescue operations, notably saving the crew of the wrecked Manhattan on 15 November 1917. Her final voyage was marked by a maritime accident in Sumner Strait near Point Baker, Alaska, on 18 November 1917. While underway, the Mariposa struck a rock at Strait Island. With 269 passengers and nearly $1 million worth of freight aboard, the vessel quickly settled in shallow waters. Fortunately, the calm weather allowed the safe evacuation of all aboard to Wrangell, with the USLHT Fern transporting passenger baggage. Although the ship could not be salvaged, some of her cargo, along with her donkey engine and machinery, were recovered. The sinking of the Mariposa marked the end of her service, but her career highlights the vital role of iron steamships in Pacific maritime history. In 1926, her owning company, the Oceanic Steamship Company, was acquired by the Matson Line, which continued the legacy of regional maritime service.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.