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 Trail 
Markers and Signs
 Trail 
markers and signs are designed to communicate information about the trail to the 
rider. In order to establish a degree of uniformity throughout North America, 
the International Association of Snowmobile Administrators (IASA) has established 
some basic sign standards for all snow belt states and provinces. Here are the 
common signs seen on New York snowmobile trails. 
 
   Snowmobile Permissive 
 Indicates trails 
and use areas where snowmobiles are permitted to operate. Colors are green and 
black on white.
   
 Snowmobile 
Restricted 
 Indicates 
trails and areas where snowmobiles are NOT permitted to operate. Colors are red 
and black on white.
 
 
  
 Stop  Indicates a significant hazard trail or road intersection. Snowmobiles MUST come 
to a complete stop and yield to cross-traffic before proceeding. Color is red 
and white.
 
 
  
 Stop 
Ahead  Indicates that 
there is a stop sign 200 feet or more ahead. Probably the most important sign 
on a trail because it warns of a potentially hazardous situation ahead. Color 
is usually red and yellow.
 
 
 
  
 Yield  Indicates that snowmobiles should yield the right of way to other traffic at trail 
intersections, driveway crossings, or other similar situations. This sign does 
NOT require the snowmobile to come to a complete stop. Color is usually red and 
white, but may be black and yellow.
 
 
  
 Caution  Indicates a hazard of some sort in the trail 50 to 100 yards ahead. A sign on 
each side of the trail indicates an extreme hazard. Color is usually black and 
yellow.
 
 
  
 Bridge Ahead  Indicates 
a bridge in the trail 50 to 100 yards ahead. Color is usually black and yellow. 
 
 
  
 Directional 
Arrow  Indicates a 
sudden or significant change of direction in the trail ahead. Used to mark dangerous 
turns. Color is usually black and yellow, but may also be orange and white.
 
 
  
 Trail 
Blaze or Blazer  Indicates 
the path of the trail. Reassures riders unfamiliar with the trail, and guides 
groomers after storms when they are re-opening the trail. Color is usually solid 
orange, or orange and white. 
 
 
 Speed 
Limit  Indicates the maximum 
lawful or recommended speed in miles per hour for the trail section. Color is 
usually black and white. 
 
   Corridor Trail number 
 Indicate that the 
rider is on an NYS Corridor Trail. They are high volume primary routes that provide 
access to significant use areas and concentrations of snowmobilers, and are supported 
with Trail Fund money. Color is brown and yellow, but some may be blue and white.
 
  
 Secondary 
Trail number  Indicates 
that the rider is on an NYS Secondary Trail. They are medium volume routes that 
connect local attractions and concentrations of snowmobilers to Corridor Trails, 
and are supported with Trail Fund money. Color is brown and yellow.
 
 
 
  
 Facilities 
 Indicates the availability 
of gas, food, lodging, telephone, and repair services. Color is usually white 
on blue or dark brown.
 Other 
trail signs with messages like "No Entry - Trail Closed", "Skiers 
On Trail", "Winter Wheat", "New Seeding", or "Snowmobile 
Trail - No Wheeled Vehicles" are designed to provide additional information 
for safe and responsible riding. Please heed the messages on these signs.  Finally, 
be aware that sign theft is a growing problem, so don't assume that every hazard 
is properly identified with a sign. 
 
  
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