The primary evidence for such a combat capability has come from gradual disclosure to the media of S-300PMU-1 capabilities in Crete after the 1998 deployment of the weapons to the Greek island. Also, digital aerial and satellite photography, such as that presented by Google Earth, has allowed independent observers to suggest that at least three new military facilities were purpose-built in Cyprus for the deployment of the S-300s (two sites for the missile batteries and one mountain site for the 64N6E radar package). According to some of these observers, the radar site and one of the missile sites were installed in heavily-fortified positions on the northern face of Mount Olympus, the largest mountain in the Troodos Mountains. Additionally, a second fortified missile site is claimed to exist near Droushia, a coastal village in the extreme west of the island.