Many different industries require Professional Land Surveyors including architectural firms, engineering firms, government agencies, real estate sales agencies, mining companies and many more. There are a vast number of industries that need surveys and the types of surveys are equally as diverse. For example, real estate agents will normally require surveys to define the details of the land boundaries. An engineer may need topographic information to design storm water structures or an erosion control plan. So each survey will require different methods and employ acutely more detail or advanced techniques.
Many land surveyors choose not to specialize, however if you are working toward gaining very specific knowledge you should choose your land surveying internship accordingly.
You will many times, be given a specific amount of responsibility during your land surveying internship, where you will spend a lot of time assisting the professional land surveyor in obtaining data in the field, then compiling that data and creating the final plat or product at the end of the project.
Many land surveying internships are organized through your college as they have lots of contacts with the local professional businesses and many government agencies that offer land surveying.
You can contact local professional businesses independently. Offer them your resume along with a cover letter and send it to companies that interest you.
You need to plan ahead when looking for a land surveying internship. Internships are somewhat limited - particularly in small towns - so map out your plan with acute attention to detail. You probably need to plan as early as a year or more ahead of when you want to start your land surveying internship and secure the best position possible.