Lunar Crater National Back Country Byway - Black Rock Lava Flow - National Scenic Byways on Waymarking.com

The Black Rock Lava Flow (Marcath lava flow from Marcath cone) is the youngest feature along. the Lunar Crater National Back Country Byway.

There is a sign kiosk and parking lot at this location. Text of sign:

The products of volcanoes are gases, solids, and liquids. Explosive releases of heat and pressure from beneath the earth’s crust blow out clouds of gases, ash, and magma which may solidity in the air before raining back to the surface. These violent kinds of eruptions create dramatic land forms such as Lunar Crater and Easy Chair Crater with it’s associated cinder cone. The volcanic cone on the horizon is of such tumultuous origins.
Black Rock Lava Flow, however is evidence of a quieter eruption in which hot magma swelled up inside the cinder cone The weak cone walls, unable to support the bubbling, molten rock, broke through and allowed the scorching liquid lava to flow sluggishly toward the west. As the lava cooled, it solidified to form the black rock we see here. Black Rock Lava Flow is the youngest of the lava flows in the Lunar Crater Volcanic Field.
Close inspection of the lava reveals fragments of foreign rocks and crystals picked up when the magma was still deep within the earth.

Program: BLM Back Country Byways Website: [Web Link] Official Name: Lunar Crater National Back Country Byway

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Date Logged Log   10/03/2016 Volcanoguy visited it