Guide Signs
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This sign indicates that the only place you may lawfully throw your trash on the highway is in a litter barrel, and this sign advises that such a barrel is one mile ahead, with litter barrels also found at all rest/picnic areas.

This sign marks a U.S. Bicycle Route. These are officially designated cycling routes that form part of a national network for long-distance bicycle travel. The number (e.g., 23) identifies the specific route.

This green sign is a mile marker, indicating you are at mile 44 on a highway. It helps with navigation, locating accidents, or giving directions.

This sign is used to mark routes within U.S. National Forest lands. These routes may lead to recreational areas, trailheads, or scenic drives within the forest.

This sign with INTERSTATE 22 indicates an Interstate Route Marker, telling you what road you are on, advising to plan your trip and know which roads you want to take.

This sign with LOOP 270 tells you what road you are on, indicating it is a short state highway in a city or urban area.

This sign with EXIT ONLY and a downward arrow in a yellow panel indicates that the lane with this sign above exits ahead.

This sign with directional arrows, city names, and distances provides travel information, telling you which way to go and how far you must travel to get to cities, airports, and other destinations.

A white square sign with a black X is a lane-use control signal indicating. Red X means do not use the lane, yellow X means prepare to vacate, and green arrow means the lane is open for use.