He should be a gold mine of information for them.

I might, she told herself, be looking at a gold mine.

He'd found a gold mine and didn't want anyone to know about it.

There's a gold mine further down, which you can just make out from here.

The deal with the Met could make a gold mine of this site.

This was like no gold mine he had ever heard of.

Sure, that guy knows a lost gold mine he's going to offer us.

This is a little gold mine we've got going here.

For students of popular culture the material is a gold mine.

For all this, however, the place is not yet a gold mine.

We've got products liability cases that are gold mines.

I knew very well she had gold mines.

He referred to the space photographs as "gold mines waiting to be prospected."

Well, fact is, he asked the natives if there might be gold or silver mines around here.

I'll match you whether we sell them gold mines or oil wells.

The camp disappeared before 1900, but there are still gold mines in the area.

There are three gold mines still active in the area surrounding the town.

You know also, old Sean, you especially, how many others depend for life on those gold mines.

In the high-inflation days of the late 70's, it was gold mines that were always about to hit pay dirt.

"What makes you think you can find this here gold mine?"