Final answer:
If you cannot see a good steering mark along the azimuth line you are following, there are a few things you can do. You can use a surveyor's telescope or the thumb technique to determine positions. Additionally, you can approximate your position based on the origin and choice of coordinate system.
Step-by-step explanation:
If you cannot see a good steering mark along the azimuth line you are following, there are a few things you can do. One option is to use a surveyor's telescope, which is designed to measure angles and azimuths. You can also use a thumb technique to determine the position of a landmark relative to your current location. Finally, if you are using a coordinate system, you can try to approximate your position by defining it as positive or negative based on the origin and choice of coordinate system.