1. A computer-implemented method comprising: acquiring, via a mobile device having image acquisition capabilities, a plurality of images of an exterior of a pile of material, based on a human user carrying the mobile device around the exterior while the plurality of images are being acquired; selecting, by one or more configured devices, multiple images of the plurality for use in representing the exterior of the pile; analyzing, by the one or more configured devices, the selected multiple images to generate a three-dimensional computer model of the exterior of the pile, the analyzing including identifying portions of at least some of the selected multiple images that do not correspond to the exterior of the pile and excluding the identified portions from data included in the generated three-dimensional computer model; calculating, by the one or more configured devices, a volume of the pile based on the generated three-dimensional computer model; and providing, by the one or more configured devices, information about the calculated volume.