Each player is part of a team of explorers or treasure hunters. Each team has stumbled across long lost charts that give directions to a Lost Valley. At the top of the valley is an ancient temple, rumoured to be filled with the gold of an extinct native tribe. But the tribe were clever. The valley contains numerous protections for their temple.
The players were all racing to get to the temple to grab treasure and then get it back out of the valley alive. The first team to recover three treasures would win the game.
Lost your instructions manual? No worries, download a translated copy of the game instructions (pdf).
What's it worth? Take a look at this Waddingtons Lost Valley Dinosaurs price guide: sold listings for a value indication.