These green cowboys try to marry good stewardship of the land with making money.
As Russia invests $3 billion to attract visitors, it could open a nature preserve with the largest concentration of active volcanoes and geysers in Eurasia to tourism.
Bear '399,' the Angelina Jolie of grizzlies, attracts much attention at Grand Teton National Park. A volunteer brigade helps to maintain peace – and separation – between man and beast.
Yellowstone River oil spill: About 150 people showed up at an EPA meeting Wednesday night with questions about health risks, the duration of the cleanup, and whether the oil will permanently damage their livestock or property.