Simplify the following text for a Grade 6 native English-speaking person.
Original: ChirripÃ National Park is located in the middle portion of the Talamanca Range of Costa Rica , approximately 30 km northeast from the city of San Isidro del General .
Simplified: ChirripÃ National Park is a national park in Costa Rica . It is located in Talamanca Mountain , 20 k northeast of San Isidro del General .