Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Try the next-generation Data Catalog at catalog-beta.data.gov and help shape it with your feedback.

Original aerial photographs of Fall Creek Lake, Oregon, acquired during annual drawdown to streambed November 10, 2016

Metadata Updated: January 20, 2026

The Middle Fork Willamette River basin encompasses 3,548 square kilometers of western Oregon and drains to the mainstem Willamette River. Fall Creek basin encompasses 653 square kilometers and drains to the Middle Fork Willamette River. In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey evaluated geomorphic responses of downstream river corridors to annual drawdowns to streambed at Fall Creek Lake. This study of geomorphic change is focused on the major alluvial channel segments downstream of the U.S. Army Corps of Engineers’ dams on Fall Creek and the Middle Fork Willamette River, as well as the 736 hectare Fall Creek Lake. Reservoir erosion during streambed drawdown results in sediment delivery to downstream reaches. To better understand patterns and processes of reservoir erosion related to downstream geomorphic responses, detailed reservoir deposit mapping and change analyses are completed. To support these analyses, aerial photographs were collected via unmanned aerial systems (UAS) on November 8 and November 9, 2016, and via Cessna aircraft (or manned aerial system; MAS) on November 10, 2016, to create 3-dimensional xyz point clouds, digital elevation models (DEMs), and orthophotographs of the Fall Creek Lake bottom during full reservoir drawdown using structure-from-motion (SfM) techniques. The November 8 model resulted in a ground resolution of 3.28 centimeters per pixel, average point density of 58.2 points per square meter, and DEM resolution of 13.1 centimeters per cell. The November 9 model resulted in a ground resolution on 2.86 centimeters per pixel, average point density of 76.6 points per square meter, and DEM resolution of 11.4 centimeters per cell. The model for the manned aerial system (MAS) flight on November 10 had a slightly lower ground resolution at 4.18 centimeters per pixel (for multiple altitudes), average point density of 35.8 points per square meter, and output DEM resolution of 16.7 centimeters per cell. Cell sizes were automatically generated by the software. This documentation describes the aerial photographs (in four zipped folders including .csv and .kml files for UAS image location information) for Fall Creek Lake, Oregon, acquired when lake levels at streambed on November 10, 2016. This dataset is part of a broader publication including aerial photographs, 3-dimensional xyz point clouds, DEMs, orthophotographs, model processing reports, ground control points, and dataset footprints for November 8-10, 2016.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Created Date January 12, 2026
Metadata Updated Date January 20, 2026

Metadata Source

Harvested from DOI USGS DCAT-US

Additional Metadata

Resource Type Dataset
Metadata Created Date January 12, 2026
Metadata Updated Date January 20, 2026
Publisher U.S. Geological Survey
Maintainer
Identifier http://datainventory.doi.gov/id/dataset/USGS_5dfd18d8e4b0b207aa007e34
Data Last Modified 2020-08-27T00:00:00Z
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20260120143730
Harvest Object Id d16c324b-b33b-4967-b6ce-eedd72486d34
Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
Harvest Source Title DOI USGS DCAT-US
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": -122.759073, 43.921350, -122.759073, 43.973984, -122.667780, 43.973984, -122.667780, 43.921350, -122.759073, 43.921350}
Source Datajson Identifier True
Source Hash e7ec237951c4bd2a58ff48ddc8578116bb8f124f2e6acbd3b8d2f11f40ffd74a
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -122.759073, 43.921350, -122.759073, 43.973984, -122.667780, 43.973984, -122.667780, 43.921350, -122.759073, 43.921350}

Didn't find what you're looking for? Suggest a dataset here.