He made many trips through the uncharted region that later became northern Manitoba and Saskatchewan.

"I fear that we have come to an uncharted region," said Arrowroot, peering under his hand into the distance.

Clearly, an uncharted region of impeachment doldrums had been entered.

Objects may yet be discovered in the Solar System's uncharted regions.

I was going to visit uncharted regions of my consciousness and make notes.

It would include the cavalry moving in the dead of winter through a largely uncharted region and required daring leadership.

"The last station is in an uncharted region of the quadrant," Kirk murmured.

They're out in the middle of an uncharted region of space for the sole purpose of not having emergencies.

Internet art often explores the digital medium's uncharted regions, but it does so from within the confines of the personal-computer screen.

But we need to go into the uncharted regions if we're to find what we're looking for.