Indigenous Group Firuzkuhi (Also known as: Firuzkohi, Firozkohi, Firozkuhi, Chahar Aimaq, Char Aimaq, Four Aimaq).
Location Afghanistan, eastern part of Badghis and northern part of Ghowr provinces. Firuzkuhi are an ethnic group of the Chahar Aimaq tribal confederation.
Estimated Population 95,000 (Klimburg, 1966) 110,000 (Snoy, 1972)
Environment Plain / Mountain
Lifestyle Semi-nomadic / Nomadic
Subsistence Animal Husbandry
Level of Assimilation Fairly Traditional
Language Family Aimaq (Firuzkuhi dialect)
Indo-European, Indo-Iranian, Iranian, Western, Southwestern, Persian
Alternate names: Aimaq, Chahar Aimaq, Char Aimaq, Farsi, Parsi, Eastern Persian, Eastern Farsi, Eastern Parsi

Firuzkuhi speak an eastern Persian dialect known as Firuzkuhi. This dialect is sometimes classified together with related dialects as Aimaq language (which, in turn, is sometimes considered a dialect of Farsi/Dari).
Website URLs Afghanistan Online (an expatriate site)
Peoples of Afghanistan (US State Dept.)
Afghanistan country study (US Government)
Ethnologue: Aimaq (Firuzkuhi dialect) a language of Afghanistan
Afghanistan ethnolinguistic maps

Additional Offline Sources:
Klimburg, M. Afghanistan. Das Land im historischen Spannungsfeld Mittelasiens. Vienna, 1966.
Janata, A. Rezension zu D. Frohlich: Nationalismus und Nationalstaat in Entwicklungslandern. Afghanische Studien, 3, 1970. In: Archiv fur Volkerkunde, 27 : 192-194, 1973.
Snoy, P. Die ethnischen Gruppen. In : W. Kraus (ed.), Afghanistan. Tubingen, 1972.
NGOs No NGOs deal specifically with this ethnic group. For major NGOs operating in Afghanistan see separate entries for major Afghan ethnic groups (Pashtun, Tajik, Uzbek and Hazara).