(DC) (Rock Creek Conservancy) Join Rock Creek Conservancy and Rock Creek Park for a conversation between acting superintendent Brian Joyner and Joan Zenzen, historian and author of ‘An Urban Oasis: Rock Creek Park’s History and Management.’ Zenzen will describe the park’s establishment and management over time in the context of public use, park management, and the field of preservation, as well as the dynamics of the surrounding jurisdictions and communities.