there's gold in them thar hills

there's gold in them there hills

There is the potential to make a lot of money from this venture. A reference to the Sometimes written as "them thar hills" to affect a rural accent. Primarily heard in US. With the sudden and ubiquitous rise of smartphones, the new and lucrative market of mobile apps came to the fore, and developers around the world realized that there's gold in them there hills. As an emerging nation with a growing economy, there's gold in them thar hills for companies willing to invest early.
See also: gold, hill, there
Farlex Dictionary of Idioms.

there's gold in them thar hills

or

there's gold in them there hills

AMERICAN, INFORMAL
People say there's gold in them thar hills or there's gold in them there hills to mean that it is possible to make money in a particular place or with a particular activity. Mongolia has gold in them thar hills and foreign companies have been quick to grab a piece of the action. There would be winners and losers in the high-tech business, but there was gold in them there hills. Note: People often use other words instead of hills according to the subject they are talking about. Drugs companies are seeing sales soar in America. There's gold in them there pills. Note: This expression refers to the California Gold Rush of the 19th century; the line also appears in the theme song of an old television programme about that period.
See also: gold, hill, thar
Collins COBUILD Idioms Dictionary, 3rd ed.
See also:
  • there's gold in them there hills
  • rain stopped play
  • (as) ancient as the hills
  • ancient
  • ancient as the hills
  • (as) old as the hills
  • old as the hills
  • thar
  • thar she blows
  • in/with reference to
References in periodicals archive
There's gold in them thar hills. And with prices hovering at $460 an ounce, Alaska hasn't seen this kind of frenetic exploration for it since the early 1980s.
THERE'S gold in them thar hills, we were reliably informed.
I said to myself, there's gold in them thar hills."
When the hapless miners' bodies were found, a note written by one of the men stating "there's gold in them thar hills" was recovered.
In my mind's eye, I can see the dusty prospector, dismounting from his mule and making his way to the assay office to cash in his latest find while triumphantly yelling, "There's gold in them thar hills!"