girduni

The spur itself is penetrable by two passes, one where it joins the Elburz, which is the more difficult of the two, and another, further to the south, which is easier. The latter now known as the Girduni Sudurrah pass, constitutes the famous "Pylae Caspiae."

George Rawlinson - The Seven Great Monarchies Of The Ancient Eastern World, Vol 6: Parthia : The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations.

In the long grass of the Moghan district, on the lower course of the Araxes, the snakes are so numerous and venomous that many parts of the plain are thereby rendered impassable in the summer-time. A similar abundance of this reptile near the western entrance of the Girduni Siyaluk pass induces the natives to abstain from using it except in winter.

George Rawlinson - The Seven Great Monarchies Of The Ancient Eastern World, Vol 3: Media : The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations.

Arrian, whose accuracy is notorious, distinctly states that from the Gates to Rhages was only a single day's march, and that Alexander accomplished the distance in that time. Now from Rhei to the Girduni Surdurrah pass, which undoubtedly represents the Pylae Cacpise of Arrian, is at least fifty miles, a distance which no army could accomplish in less time than two days.

George Rawlinson - The Seven Great Monarchies Of The Ancient Eastern World, Vol 3: Media : The History, Geography, And Antiquities Of Chaldaea, Assyria, Babylon, Media, Persia, Parthia, And Sassanian or New Persian Empire; With Maps and Illustrations.