Jefferson County authorities are looking for who's responsible for putting large boulders on railroad tracks in Madras recently. Detective Starla Green says one of the times it caused some damage to the train:  “Once in May and once in July. The train came up on a larger boulder placed on the train tracks. The first one actually struck it and caused damage. The second one, they were able to stop before hitting the boulder.” A red dune buggy was seen near the train tracks around the time of these incidents. If you have any information in this case, you are asked to call the Jefferson County Sheriff's Office.