Öxarárfoss is a small waterfall in Þingvellir National Park. It flows from the river Öxará. The base of the waterfall is filled with rocks.
The continental drift between the North American and Eurasian Plates can be clearly seen in the cracks or faults which traverse the region, the biggest one, Almannagjá, being a veritable canyon. This also causes the often-measurable earthquakes in the area.
A geologically young land, Iceland is located on both the Iceland hotspot and the Mid-Atlantic Ridge, which runs right through it. This location means that the island is highly geologically active with many volcanoes. Iceland has many geysers, including Geysir, from which the English word is derived.