The Rock Elm Disturbance is an impact crater in Pierce County, Wisconsin, United States, roughly 40 kilometres (25 mi) southwest of Menomonie.

[3] It may be one of several Middle Ordovician meteors that fell roughly simultaneously 469 million years ago, part of a proposed Ordovician meteor event within the continental United States that includes the Decorah crater in Iowa, the Slate Islands crater in Lake Superior, and the Ames crater in Oklahoma.

[4] A raised area at the center of the crater 0.8 km (0.5 mi) wide by 2.4 km (1.5 mi) long suggests that the impact caused a major upheaval of lower-lying rock— breccia and Mount Simon Sandstone, which lies beneath the surface and is much older than the rock layers in the area surrounding it.

Additionally, Blue Rock, an exposed portion of faulted Prairie du Chien sandstone lies at the south of the crater's edge, which can be viewed at Nugget Lake County Park.

While studying the effects of erosion on areas of meteorite impact, researchers from the University of Puerto Rico discovered a rare high-pressure mineral, reidite, at the center of the Rock Elm impact site.