In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Q: Passage: Elcor is a ghost town, or more properly, an extinct town, in the U.S. state of Minnesota that was inhabited between 1897 and 1956. It was built on the Mesabi Iron Range near the city of Gilbert in St. Louis County. Elcor was its own unincorporated community before it was abandoned and was never a neighborhood proper of the city of Gilbert. Not rating a figure in the national census, the people of Elcor were only generally considered to be citizens of Gilbert. The area where Elcor was located was annexed by Gilbert when its existing city boundaries were expanded after 1969.In November 1890, the seven Merritt brothers discovered ore near Mountain Iron, triggering an unparalleled iron rush to the Mesabi Range. The Elba mine was opened in 1897, and the town was platted under the direction of Don H. Bacon, president of the Minnesota Iron Company. A second nearby mine, the Corsica, was opened in 1901. The community was first called "Elba" after the name of the first underground mine (the name "Elcor" was formed later by combining the first syllables of each mine's name). The Elba and Corsica mines were both leased by Pickands Mather and Company after the formation of the United States Steel Corporation. An influx of people of many ethnicities and many nations followed, and Elcor became a microcosm of U.S. immigration, mirroring the cultural assimilation of the time. At its peak around 1920, Elcor had two churches, a post office, a general store, a primary school, a railroad station, and its own law enforcement, and housed a population of nearly 1,000.Elcor was a mining location, built by the mining company to house the workers for its mines. People were allowed to own their homes, but the land on which the houses stood belonged to the mining company. After the Corsica mine closed in 1954, Pickands Mather and Company ordered the residents to vacate the property so that it could reclaim the land; by 1956, Elcor was completely abandoned. The desolate property changed hands often through acquisitions, mergers, and bankruptcies. In 1993, the Inland Steel Company began stockpiling the overburden from what is now the Minorca Mine over Elcor's former location.
A:
What was the original name of the city that was platted under the Minnesota Iron Company?