JACKSON, Wyo. (AP) A consultant said road grading projects may have contributed to a slow-moving landslide that has displaced nearly 60 residents and damaged homes and businesses.

The area around the slide has been the site of grading and construction over decades, including construction of a residential road and grading of a main highway.

Landslide Technology engineer George Machan told city officials the hill did not start sliding by itself.

The Jackson Hole News & Guide reported the slide was discovered April 4 on a hill above a residential area and the ground is moving about an inch a day.

Officials say they don’t believe there’s any danger of a catastrophe.

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