Wikipedia https://sk.wikipedia.org/wiki/Kokořínský_důl_(prírodná_rezervácia)
Official Website https://wiki.openstreetmap.org/wiki/EEA:Nationally_designated_areas_import
Official webstie http://www.kokorinsko.ochranaprirody.cz
Tourist information http://www.kokorin.cz/
Coordinates 50°26'26.324" N 14°35'25.077" E