Observers traveling to FLWO or MMTO are required to read the FLWO Visitor information guide. Visitors to the mountain must be familiar with the difficulties of driving a mostly unpaved, single-lane mountain road where weather conditions can change rapidly, especially in winter. Safety precautions must be followed to protect all drivers. The mountain roads can be very dangerous for unprepared and inexperienced drivers.

All observers using FLWO vehicles must

If you are not sure that you have complied with this requirement, contact Danny West at dwest@cfa.harvard.edu or 520-670-5710.

Please ensure that all students and staff traveling to the telescopes for the first time are aware of these procedures. Visitors who are not confident about driving on the mountain road must contact FLWO at the email or phone number listed above to discuss other options. Alternate transportation options include arriving at the Basecamp in time to ride to the mountain with day time staff or with another observer. It may be possible to make other arrangements if you contact FLWO significantly in advance of your trip.