Panoramas: Great for familiarizing yourself with the site and the surrounding area.
Drone Map: This is basically an up to date google map, only better. Much higher resolution, and includes elevation and distance data. You can make meausrments, get volumes of stockpiles, and view 3D models. If you want to play around on your own, create an account and I will share the survey with you.
Pre Proposal Jan 13, 2021