Bilghah
Bilghah is a well of sweet water in the high Najd country south of an-Nuqrah. It lies in Wadi Raghwah, whose floodwaters drain toward Wadi Sahuq, near a group of hills including Aaj, Mawan and Arik. Old grinding stones, pottery and traces of mining in the surrounding country testify to human activity in this otherwise dry landscape.