Hekla

Hekla (), or Hecla, is an active stratovolcano in the south of Iceland with a height of . Hekla is one of Iceland's most active volcanoes; over 20 eruptions have occurred in and around the volcano since the year 1210. During the Middle Ages, the Icelandic Norse called the volcano the "Gateway to Hell" and the idea spread over much of Europe.

Vatnafjöll () is a long, wide basaltic fissure vent system that is south-east of Hekla, Iceland. It includes from the north towards the south the hills of Innri-Vatnafjöll at high, Fremri-Vatnafjöll at and Vatnafjallarani at as the main Vatnafjöll edifice, at a distance of about from Hekla. It is part of the same system as Hekla, and the term Hekla-Vatnafjöll volcanic system has been used to describe it. More than two dozen eruptions have occurred at Vatnafjöll during the Holocene Epoch. Vatnafjöll has not erupted during the last 1100 years. While these eruptions were predominantly effusi

thumb|Birch and willow (Salix lanata) growing in the southern edge of Hekluskógar at Langalda between Gunnarsholt and Keldur Hekluskógar (, "Hekla Forest") is a reforesting project in Iceland near the volcano Hekla. The main objective is to reclaim woodlands of native birch and willow to the slopes of Hekla starting with soil fertilisation and grass sowing. This would prevent volcanic ash from blowing over nearby areas after eruption in Hekla and help to reduce wind erosion. It is the largest reforestation of its type in Europe and is estimated to cover 1% of the area of Iceland.