In spring 2020, the world was hit by a pandemic that spread globally by March, causing universities and most of the world to move to remote means. Summer field camps, long hailed as a rite of passage in the geosciences, were cancelled throughout the US. The community moved quickly, with NAGT developing remote learning tools and arranging for sharing and collaboration between instructors and institutions. As such, UNAVCO (GETSI) and University of Northern Colorado embarked on a data collection campaign for a summer field course entitled “Geoscience Field Issues Using High-Resolution Topography to Understand Earth Surface Processes” – originally slated for in-person teaching. The team collected GNSS data, drone imagery for use in structure from motion, and terrestrial laser scanning from a site near Greeley, Colorado on the Poudre River. In an assignment, students conduct a Structure from Motion (SfM) survey of the Sheep Draw field site. The end product is a point cloud used in additional assignments to conduct analyses. This is the instructor-derived SfM point cloud.

opentopoID: OTDS.102020.26913.1

DOI: https://doi.org/10.5069/G9416V78

Platform: Structure from Motion / Photogrammetry

Data Format: Point Cloud, Images

Dataset Acknowledgement: ● Sharon Bywater-Reyes, University of Northern Colorado
● Ara Metz, University of Northern Colorado
● Keith Williams, UNAVCO
● Beth Pratt-Sitaula, UNAVCO

Dataset Citation: Bywater-Reyes, S. (2020). Poudre River at Sheep Draw SfM Greeley, CO June 2020. Distributed by OpenTopography. https://doi.org/10.5069/G9416V78. Accessed: 2025-11-13

Survey Date: 06/19/2020

Survey Area: 0.04 km²

Publication Date: 10/30/2020

Total Number of Points: 13,495,016 pts

Point Density: 306.34 pts/m²

Coordinates System: