What Is a Land Survey, and When Do You Need One?
Create Survey Lines
Collect lines Emlid Flow and Emlid Flow 360
LimeSurvey — Free Online Survey Tool
How did the Romans determine the narrowest points to build Hadrian's Wall and what led to the construction? - Quora
Create equally spaced lines within a polygon
Creating a survey with SurveyMonkey
QINSy How-to - Quick Start Database Setup
How did the Romans build straight roads? If they were building a road a couple of hundred miles long, say from London to Chester, how did they know which direction to start?
a) Map of strata (grey lines) used by the NEFSC bottom-trawl survey