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A general view of the Shoshone Hydroelectric Plant from 1968.

A general view of the Shoshone Hydroelectric Plant from 1968. D&RGW Railroad Tunnel and tracks on the left, and U.S. Hwy. 6 bridges on the right. The plant is now  part of Xcel Energy, reporting mark XCLX.    Library of Congress photo. 

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List of Reporting Marks - X

Note: Marks ending in U are for container owners; marks ending in X are not common carriers; marks ending in Z are for trailers without flanged wheels. All other marks are of common-carrier railroads.

XOMX - Exxon-Mobil Corporation
XCLX - Xcel Energy
XTRX - XTRA, Inc.; First Union Rail
XTTX - Trailer Train Company

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