Yellowstone National Park
Even before the creation of Yellowstone, the naturalist Henry David Thoreau and other supporters asked the government to protect nature and animals in that place. However, when the park was finally made, there was no such law. A law to stop most of the animals from being shot was not made until 1883, nearly 10 years after making the park. Hunting "protected" animals were not allowed because of that law. Even so, poachers could still operate. So in 1894, a new law called the National Park Protection Act was made. The US Congress protected nature, wildlife and other natural resources. The new law did not allow the killing or destroying of them, and only fishing was allowed. Nature, such as trees, mineral resources, and other things, were not allowed to be hurt.