Also known as the Green Hills, the Pinnath Gelin could be found south of the White Mountains between the Rivers Lefnui and Morthond. The River Calenhir, a tributary of the Morthond has its source in the eastern Pinnath Gelin.

To answer the call of Minas Tirith in the War of the Ring the people of Pinnath Gelin could only send 300 green clad men led by Hirluin The Fair.