The 0-4-0T locomotive nicknamed "Ann Marie" was built in 1890 for the Cortez Mines Limited Railroad in Beowawe, Nevada by H.K. Porter as a 30" gauge locomotive. She weighs 8 1/4 Tons and burns coal with a boiler pressure of 140 pounds.
It was later used in the 1950s at Last Frontier Village at the Hotel Last Frontier in Las Vegas, Nevada. In 2006 is was restored and converted by her owner to 36" Narrow Gauge.
Today it operates on the narrow gauge railway at Ardenwood Historic Farm in Fremont, CA.