The land called Teapot Dome in Wyoming was valuable because. it produced oil.
America joined the war late, this meant that America was not crippled Total production of American industry increased by 50% in the 1920s.
While it was true that western lands were somewhat more fertile than the now-depleted lands of the East, many of the pioneers were attracted to the frontier in order to speculate in land, i.e. to purchase large quantities of cheap government land and to sell it at a profit to later comers