1. Black Sand Basin is a geothermal area in Yellowstone National Park that features geysers, hot springs, mud pots, and fumaroles. It is named after the black volcanic sand that covers the basin. Interesting features in the basin include the colorful, steaming Opal Pool, the spouting Grotto Geyser, and the Emerald Pool, which is the largest spring in the basin and known for its vivid green color. The basin also includes Rainbow Pool, Sunset Lake, and Cliff Geyser. Visitors can take a boardwalk trail to explore the basin and observe the bubbling geothermal features.
2. Black Sand Basin is open 24 hours a day, year-round. There is no phone number specifically for Black Sand Basin, but the park’s general information line is (307) 344-7381.
3. Entry to Black Sand Basin is included in the admission fee for Yellowstone National Park, which is $35 per vehicle for a 7-day pass. Visitors can access the basin by car or using the park’s free shuttle system. The nearest shuttle stop is at Old Faithful, from where it is a 1.5-mile walk to the basin. There is a parking area and restroom facilities at Black Sand Basin for those driving.
