PINEDALE, Wyo. (AP) — Firefighters are making progress against a 400-acre wildfire threating 13 homes in western Wyoming.

The  Chall Creek Fire was 20 percent contained Wednesday. It ignited Sunday 30 miles west of Pinedale and has prompted some evacuation orders.

No buildings have been reported lost. The cause remains under investigation.

Near Jackson, the nearly 3,400-acre Horsethief Canyon Fire is 82 percent contained.

The danger posed to the town of Jackson has passed but firefighters are still keeping an eye on homes on the southern end of the fire. Crews are working toward containing the fire along that flank.

In northern Wyoming, the 8,050-acre Gilead Fire near Buffalo is 42 percent contained. It was started by lightning in the Bighorn National Forest on Aug. 14.