Based on map from:
محک, https://commons.wikimedia.org/wiki/File:Caspian_languages_(With_Tati_and_Semnani).svg
Updated by me using the following sources:
https://www.iranicaonline.org/articles/calus
Foundation، Encyclopaedia Iranica. «Welcome to Encyclopaedia Iranica». iranicaonline.org https://iranicaonline.org/
http://www.chalouscity.ir/HomePage.aspx?TabID=4640&site=DouranPortal〈=fa-IR
https://www.iranicaonline.org/articles/calus
https://www.ethnologue.com/language/glk
http://www.eva.mpg.de/linguistics/past-research-resources/documentation-and-description/northwest-iranian-project.html
https://rch.ac.ir/
https://iranicaonline.org/articles/alborz-geography
https://iranicaonline.org/articles/alamut-valley-alborz-northeast-of-qazvin-
https://dx.doi.org/10.29171/azu_acku_ds375_bay43_meem38_1367
https://iranicaonline.org/articles/damavand =
https://iranicaonline.org/articles/iran-vi2-documentation = The dictionary edited by Naṣri Ašrafi (1381 Š./2002) contains vocabulary from the dialects of ʿAbbāsābād, Āmol, Bābol, Behšahr, Katul, Kord-kuy, Nowšahr, Sāri, Qāʾem-šahr, Tonokābon, etc. (in part compared with Pahlavi
http://www.ethnologue.org/show_language.asp?code=srz
https://www.iranicaonline.org/articles/firuzkuh
https://iranicaonline.org/articles/damavand
https://iranicaonline.org/articles/lavasan
https://iranicaonline.org/articles/qasran
Perso-Tabaric Dialects in the Language Transition Zone Bordering Mazandaran” , 2013, Studia Iranica, Habib Borjian
https://iranicaonline.org/articles/anti-alborz-the-highland-between-tehran-and-semnan-
https://iranicaonline.org/articles/garmsar-
https://iranicaonline.org/articles/damgan-persian-town
“The Thousand accents' Island : Languages and Dialects in the Township of Semnan” , Uppsala University Sweden , Alexander
https://www.iranicaonline.org/articles/karaj-river
https://iranicaonline.org/articles/alborz-geography
https://iranicaonline.org/articles/gacsar-
https://iranicaonline.org/articles/qasran
https://iranicaonline.org/articles/alamut-valley-alborz-northeast-of-qazvin-
“The Tabaroid dialects of the Central Alborz: Language convergence between Tabari and Persian” , 2013, Studia Iranica ,Habib Borjian “Mazandaran: Language and People (The State of Research)” , 2004, Studia Iranica, Habib Borjian
“The Dialects of Velātru and Gachsar: The Upper Karaj Valley in the Caspian-Persian Transition Zone” , 2012, Cambridge University Press ,Habib Borjian |