Mauna Loa Observatory Road partially closed due to recent lava flows.
The Mauna Loa Observatory Road is partially obstructed by the 2022 Mauna Loa Eruption flows at the 8,895-ft. elevation. Access to the end of the road, NOAA weather observatory, and trails to the summit of Mauna Loa are completely impassible by foot, vehicle, or any other means.
**Please stay off the 2022 lava flow to protect yourself from hazardous conditions. These include, but are not limited to, hot spots with high temperatures, unstable footing, and sharp lava rocks.**
The thick lava flow will remain extremely hot for several months or even years before grading work can be done safely to reopen the road completely.