Dolmens in the Jordan Valley

At www.archnews.co.uk/world-archaeology/asia-archaeology/4403 and www.pasthorizons.com/index.php/archives/12//2010/hundreds-of-jordanian-dolmens-saved/ … dolmens going back to the 4th millennium BC in the Jordan Valley were in danger of being destroyed by mining operations but have now being reprieved by the setting up of an archaeological preserve. It is not known for sure how far they date back – possibly to the 5th millennium. They are on average just one metre high and one metre wide but can be up to seven feet long. Very little archaeological investigations have been made.