Cave explorers have pushed through narrow gaps in rocky walls to uncover an extra 100 metres of tunnel on South Australia's Limestone Coast, with hopes it may link separate caves together.

SAN ANTONIO - A groundbreaking historical discovery has finally pinpointed the quarry that provided the limestone used to construct the Alamo, solving a long-standing mystery about the origins of ...

The zoo confirmed the exact quarry that provided the limestone used to build the Alamo over 300 years ago, according to a news release from the attraction on Thursday, March 6. The discovery was ...