Effective communication with the public is critical for managing parks and enhancing visitor experiences. Visitors to Crater Lake National Park in Oregon (USA) were sampled on-site (n = 580) to explore social media uses and preferences. Three-fourths of visitors were active on at least one social media platform, and visitors associated different platforms with different uses. Consequently, visitors wanted to receive different types of park-related content on distinctive social media platforms. Additionally, visitors expressed the highest levels of trust in their family/close friends and National Park Service publications for getting trip-related information.