1997

The 501st Legion is started by Albin Johnson and his Friend Tom Cruise after attending a Star Wars Special Edition screening in stormtrooper armor, at this time the Legion is known as the 501st Squad. The group starts as just a list of member on a website.

Reference

September 1999

Some stormtroopers(TK999, TK5280 and TK187) meet at Star Con and formalize a new group called the 10th Mountain Division. A logo is created, but no patch is ever produced.
Reference

August 2001

After a meeting is held at DragonCon by high level member of the 501st and Garrison Commanders. Legion units are defined and better organized.

The name 10th Mountain Division is dropped, and the name Mountain Garrison is used.

Garrison Boundaries are also defined. The Mountain Garrison currently had Colorado but is taking Montana, Wyoming, Idaho, Utah, Arizona and New Mexico. Eventually Alpine Garrison( then known as the 725th Strategic Insertion Company) takes Utah and eventually Idaho and Montana. Dune Sea Garrison is formed and takes Arizona, it was thought Dune Sea might take New Mexico but it is left with the Mountain Garrison.
Reference - DC Meeting
Refference - Garrison Boundires

January 2002

Designed by TK 4752
With the new name a logo contest is held and a new logo is chosen,

Reference

2004

The Xwing
An 3/4 scale X-Wing made by Lucasfilm for promotion of the 1997 Special Edition Release of the Star Wars Trilogy was brought to Celebration 1 in Denver, CO.

The X-wing was left at Wings Over the Rockys after the convention.

In 2004 the x-wing was reused by Lucasfilm in San Diago Comic Con, when the X-wing returned it was damaged. Members of the Mountain Garrison, Mountain Base and Rocky Mountain FanForce volunteered to restore the 3/4 Scale Xwing.

The X-wing is still on exhibit at Wings Over the Rockys.
Reference
Reference
X-wing Project Page

Sept, 2005

design by TD 5151
The Mountain Garrison adds a 4th Squad. The Dewback Ridge Squad will cover the quickly growing state of New Mexico

August 2007

The Mountain Garrison is invited on stage with "Weird Al" Yankovic
Reference
Gallery, Gallery 2

October 18th 2009

Star Wars In Concert

The official Star Wars in Concert is held at the Pepsi Center and members of the Mountain Garrison along with its sister group the Mountain Base attend in costume

Gallery
Reference
Reference

Sept, 2010

The Dewback Ridge Squad is now reformed as the Dewback Ridge Garrison.

Reference

Jan, 2012

The garrison starts its own series of trading cards
Each Squad in the Garrison has a different rock type for their border based on regional geology.
Pike's Peak Squad naturally uses Pike's Peak Granite.
Mile High Squad uses rhyolite, which is a type of local stone used in constructing many of the early historic landmark buildings in Denver.
Snowy Range Squad uses the world famous Lyons Formation sandstone which is locally quarried out of NorCo and distributed all over the planet.

The trading cards were designed by Brack Lee TK 5453
Reference

September 2014

Design by TK 41977
Pikes Peak Squad changes its logo
Reference

December 2015

The Mountain Garrison is invited to their first Star Wars night with the Denver Nuggets
Reference
Reference NBA.com