Current Conditions



Park Status in Response to COVID-19

The National Park Service (NPS) is working servicewide with federal, state, and local public health authorities to closely monitor the COVID-19 pandemic and using a phased approach to access on a park-by-park basis. Based on guidance from the White House, Centers for Disease Control and Prevention (CDC), and state and local public health authorities, access to the park is as follows:

The visitor center and Delta-09 are open for regular seasonal hours. At the visitor center, capacity restrictions maybe used for visitor and staff safety. Reservation-only tours of Delta-01 tours are available into September 2021, when the building will close for preservation work. PLEASE NOTE: All tour participants are required to wear mask to reduce risk of exposure to COVID-19 within the tight confines of the elevator or underground control center.

While the listed areas are accessible for visitors to enjoy, a return to full operations will continue to be phased, and services may be limited. When recreating, please follow local area health orders, practice Leave No Trace principles, and avoid crowding and high-risk outdoor activities.

The CDC has offered guidance to help people recreating in parks and open spaces prevent the spread of infectious diseases. We will continue to monitor all park functions to ensure that visitors adhere to CDC guidance for mitigating risks associated with the transmission of COVID-19 and take any additional steps necessary to protect public health.


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Last updated: July 2, 2021

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Mailing Address:

24545 Cottonwood Road
Philip , SD 57567


605 433-5552

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