He had a radio and could notify everyone of their approximate location.

By now someone had worked out his approximate location.

"I know the approximate location of the team's base camp."

I once put a little mark showing our approximate location.

"Do you know the approximate location of the future plant?"

These are features associated with a park without an approximate location.

Now that we knew the road's approximate location and direction, we'd probably be able to pick it up in the trees below us.

This will then be calculated to find an approximate location of the data.

This data sent every 20 seconds - so we could always know the approximate location of the bus.

Their approximate locations will often be noted on road signs, however.