On clear, calm nights, from the top of Buck Hill you can see them flickering off in the distance. Not campfires, but rather gas flares, emblematic of North Dakota's energy boom, glimmering after dark. Here, in the South Unit of Theodore Roosevelt National Park, the flares are just one sign of how the boom, spurred in large part by fracking, are impacting the park.

An global roundup of national park news—this week in Korea, Tanzania and Canada.

Five "lodging and learning" packages are available to visitors heading to Yellowstone National Park this winter.