You see a white marker with and orange crossed diamond and black lettering what does the marker tell you?

The white marker with an orange crossed diamond and black lettering typically indicates a warning about potential hazards, such as the presence of utility lines or other dangers in the area. This symbol is commonly used to alert individuals to exercise caution and to avoid digging or performing activities that could disturb the marked area. It's essential to heed this warning to ensure safety and prevent accidents.