Simplify the following text for a Grade 14 native English-speaking person.
Original: The Red Pine occurs from Newfoundland west to Manitoba , and south to Pennsylvania , with several smaller , disjunct populations occurring in the Appalachian Mountains in Virginia and West Virginia , as well as a few small pockets in extreme northern New Jersey and one in north central Illinois .
Simplified: The Red Pine grows in the area from Newfoundland west to southeast Manitoba , and south to northern Illinois and Pennsylvania , with a small outlying population in the Appalachian Mountains in West Virginia .