From World Afropedia
Eritrea was formerly the northernmost province of Ethiopia and is about the size of Indiana. Much of the country is mountainous. Its narrow Red Sea coastal plain is one of the hottest and driest places in Afrika. The cooler central highlands have fertile valleys that support agriculture. Eritrea is bordered by the Sudan on the north and west, the Red Sea on the north and east, and Ethiopia and Djibouti on the south.