Despite the non-motorized designation, there are still many snowmobilers recreating in the area.  As part of the effort to inform and educate snowmobilers about the non-motorized area, three large signs were constructed along the East Callaghan Forest Service Road (the typical snowmobile access route into the area) with a map of the Rainbow Mountain Wildland Area and a notice that snowmobiling is prohibited in 21 Mile Creek, Rainbow Lake, Gin and Tonic Lakes, north side of Mt. Sproatt and Rainbow Mountain.  A pdf of the map and notice can be accessed via the FMC website (mountainclubs.org/trails_projects/Callaghan-valley/21mile).

Members are encouraged to make trips into the Rainbow Mountain Wildland Area and to document any ongoing use by snowmobilers of the area, including any conflicts with them or safety issues, as well as voluntary compliance (i.e.,. if there are no snowmobilers present or snowmobilers leave the area when informed about the designation).  Please submit photos and reports to the Snowmobile Zoning Infraction Database, which is accessed via “Campaigns” on www.bivouac.com or submit your reports and photos to Monika Bittel (mbittel9@gmail.com), Robin Tivy or Scott Nelson.

The FMCBC has sent a letter to the BC government in October 2009, asking to close the 21 Mile Creek area near Whistler to snowmobiles. The area includes Rainbow Lake and is part of Whistler's watershed. It has been zoned for non-motorized winter recreation, but in winter increasing numbers of snowmobilers access the watershed from the Callaghan Valley side. The full letter is attached below.

In 2010, the FMCBC is once again pursuing implementation of the LRMP non-motorized zoning in 21 Mile Creek for the 2010-2011 ski season.  The FMCBC has built trailhead signs at snowmobile parking areas to show the locations of the non-motorized zone.  Negotiations with government over legal implementation and enforcement of the non motorized zone are ongoing.