https://www.tyreso.se/boende--miljo/naturvard-och-miljo/naturreservat-och-nationalpark/telegrafbergets-naturreservat.html

https://www.lansstyrelsen.se/stockholm/besoksmal/naturreservat/telegrafberget.html?sv.target=12.382c024b1800285d5863a89d&sv.12.382c024b1800285d5863a89d.route=/&searchString=&counties=&municipalities=&reserveTypes=&natureTypes=&accessibility=&facilities=&sort=none