Simplify the following text for a Grade 6 native English-speaking person.
Original: The district was the northernmost part Sindh , it was bordered tothe north and west by the Dera Ghazi Khan District of the Punjab and by Baluchistan ; on the south by Sukkur District ; and on the east by the river Indus .
Simplified: The district was the northernmost portion of Sind and lay between 27 Â 56 ' and 28 Â 27 ' N. and 68 Â and 69 Â 44 ' E. , with an area of 2621 s. It was bounded on the north and west by the Dera Ghazi Khan District of the Punjab and by Baluchistan ; on the south by Sukkur District ; and on the east by the river Indus .