More than two years after road access and electrical power to the Mauna Loa Observatory was cut off by lava flows, NOAA staff continue to make critical measurements of the atmosphere and other environmental variables at the remote site.
In 2023, observatory staff installed solar panels at the site and resumed some measurements, including the independent carbon dioxide monitoring programs run by the Global Monitoring Laboratory and Scripps Institution of Oceanography, as well as other atmospheric measurements.
Construction of a temporary road to access the observatory site is anticipated to begin in summer 2025.
Media can contact: Theo Stein (303) 819-7409 (theo.stein@noaa.gov)
General Visitors
Mountain Tour Arrangements
Tours of the Mauna Loa Observatory may be scheduled by appointment only. Due to busy and constantly changing work schedules, tours may only be scheduled within 2 weeks of the requested tour date. To inquire about a tour, please fill out our REQUEST A TOUR FORM . Thank you for your request.
Office Tour Arrangements
The MLO office in Hilo is mainly administrative, but there is a small visitor center with displays of atmospheric research equipment and results. Guided office tours with hands-on displays can be arranged on selected weekdays. Office tours have been used in the past as activities for school groups and classes. To schedule a tour, please fill out our REQUEST A TOUR FORM . Please require a few weeks in advance notice before your arrival date.
Transportation Needs
Transportation is not provided for you to the mountain site, or to the MLO office, due to federal policy. All housing and transportation needs must be arranged on one's own.
Useful Information
Mauna Loa Observatory is a remote, high-altitude facility. Reviewing the information below is strongly recommended to ensure your visit is safe and you are well prepared.
Cancellations
If you must cancel a trip after a visitation has been confirmed, please contact your MLO tour representative as soon as possible.