GSMR meaning in General ?

Answer: What is Great Smoky Mountains Railroad mean?

The Great Smoky Mountains Railroad (reporting mark GSM) is a freight and heritage railroad in Bryson City, North Carolina, United States. As of December 1999, the railroad is currently owned and operated by American Heritage Railways, Inc., which also owns and operates the Durango and Silverton Narrow Gauge Railroad (D&SNG) in Colorado. Today, the railroad operates excursions on the former Southern Railway branch line between Bryson City and Dillsboro, North Carolina. The railroad has a total of two steam locomotives (one of which is operational) and soon-to-be seven diesel locomotives in their current roster.

reference

Full Form	Category
Gulf Society for Maintenance Reliability	Academic & Science
Gulf Society for Maintenance and Reliability	Academic & Science
Graduate School of Materials Research	Academic & Science
Granite State Management and Resources	Business
Gas Safety Management Regulations	Business
Granite State Management Resources	Business
Great Smoky Mountains Railroad	General
Great Smoky Mountain Railroad	Regional
Great Smoky Mountains Region	Regional