41. "' Anemone Geyser "'is a geyser in the Upper Geyser Basin of Yellowstone National Park in the United States. 42. The Heart Lake Geyser Basin begins a couple miles from the lake and descends along Witch Creek to the lakeshore. 43. She contributed important proof, in 1897, that the Grand Canyon of the Yellowstone was the remains of a geyser basin 44. The accident occurred in the Lower Geyser Basin seven miles north of Old Faithful, roughly in the middle of the park. 45. It lies about 30 miles ( 48 kilometers ) north of Old Faithful, which is part of the Upper Geyser Basin . 46. When the old geyser basin was active, the " cooking " of the rock caused chemical alterations in these iron compounds. 47. The Firehole is unique because it flows through several geyser basins which empty hot water into it, often causing steam to rise. 48. Visitors to the Upper Geyser Basin of Yellowstone Park watch and wait, hoping for a dramatic eruption, as Castle Geyser puffs out steam. 49. 2 . ( STEAM ) Seven of Yellowstone National Park's 4, 000 bison cross a geyser basin in a wintertime quest for grass. 50. As of 2005, no areas are currently off limits aside from those normally allowing limited access such as around the West Thumb Geyser Basin .
