This range lies between Heraklion and Lassithi. Its highest summit is Spathi (2.148 m) and there are two more peaks at an altitude of more than 2000m.
Lassithi Plateau, the largest in Crete, lies at the heart of the range at an altitude of 850 m. It is surrounded by a series of smaller plateaus such as Katharo, Limnakaro, Mari, Lapathos, Omalos, Erganos and Nisimos. There is a mountain shelter at Limnakaro from where hikers ascend to Spathi.
Several gorges are found in the range of Lassithi. Apart from the two gorges named Havgas at Katharo and Kalamafka, there are more canyons such as Sarakina, Adrianos, Ambelos, Roza and Kritsa.
The Dikti range has shown a significant diversity in flora and fauna. The lower mountain sides are covered by olive, carob and pine trees. To the south-east, Selakano is the largest pine wood of Crete and close to the village Krasi lies the holm oak wood of Azilakodasos.
The fertile plateaus and valleys of the Dikti range produce a large variety of agricultural products: potatoes, vegetable, pears, apples, walnuts, cherries, etc. Livestock breeding (sheep and goats) is yet another traditional activity in this region. The famous Diktaean Cave where Zeus is said to have been born is open to the public.