YELLOWSTONE NATIONAL PARK, Wyo. (AP) — A wildfire burning along the border of Yellowstone National Park and Bridger-Teton National Park is smaller than originally thought.

A surveillance flight Tuesday showed the Snake Fire is burning on about 40 acres with many spot fires nearby. Officials originally estimated it had spread to 200 acres.

One of the numerous lightning strikes in the area on Monday is suspected of starting it. Crews are working to protect a backcountry cabin and developing a firefighting strategy.

It's one of several blazes burning in the state.

In the Washakie Wilderness, the Hardluck Fire is over 10,000 acres after being pushed by winds from a cold front Monday. It's being allowed to burn since it's in a remote area.

The 400-acre Packer Creek Fire, 28 miles north of Pinedale, is 40 percent contained.