the Matchless Mines, as well as mines in Cripple Creek, Aspen, the San Juan Mountains, and the southwestern United States. By 1879, he was one of the richest men in Colorado, with six million or more dollars (). Tabor owned 4,600,000 acres of land in Colorado for grazing and 175,000 acres of land in Texas for copper mining. He sought enterprises, like irrigation canals, to provide work for laborers. In Honduras, he invested in ebony and mahogoney forests as well as mining and fruit operations. In Leadville, he donated monies for water works, rail lines, schools, and churches. He established newspapers, a bank, and the Tabor Opera House in Leadville. He displayed his philanthropy by, for example, donating the land under the Temple Israel in Leadville in 1884. Tabor donated the money for the Tabor Grand Opera House built the Tabor Block and La Veta Place, and invested in real estate and other businesses in Denver. Tabor became a partner of Marshall Field of Chicago, with whom he made millions of dollars. In 1878, Tabor was elected Lieutenant Governor of Colorado and served in that post until January 1884. He served as U.S. Senator from January 27, 1883 until March 3, 1883, following the resignation of Henry M. Teller to become United States Secretary of the Interior in the administration of U.S. President Chester Arthur. He was the president of the Denver Chamber of Commerce and of the Board of Trade in 1891. Divorce In 1879, the Tabors moved to Denver. Tabor's relationship with his wife, who preferred to save their money, began to fall as Tabor became a reckless spender and he continued to be a gambler and speculator. The couple then lived in separate residences, Augusta resided in their Denver mansion. Tabor moved into the Windsor Hotel in the city, where he entertained women. He had an affair with Elizabeth McCourt, nicknamed Baby Doe. Requiring money to support herself, by 1882 she took in boarders and she filed a suit against Tabor for financial support. Without Augusta's knowledge, Tabor attained a divorce in Durango, Colorado in March 1882. Augusta filed for divorce on January 2, 1883 for desertion. Settle in late 1883, she was awarded two properties worth a total of $250,000 or a settlement of $400,000 (). Marriage to Elizabeth Doe McCourt On March 1, 1883, Tabor finally legalized his relationship with Elizabeth "Baby Doe" McCourt in