Eastern Idaho Railroad
（重定向自EIRR）
The Eastern Idaho Railroad (reporting markEIRR) started running on November 21, 1993, as a collection of two disconnected clusters of former Union Pacific branches. EIRR is owned by Watco, Inc (WAMX), of Pittsburg, Kansas, a short line operator. EIRR operates two segments, that move more than 35,000 carloads per year to the Union Pacific, with interchanges at Idaho Falls on the Northern Segment, and Minidoka on the Southern segment. The annual income is reported as being under 25 million dollars.