Skip to main content
U.S. flag

An official website of the United States government

Beaver dam locations and beaver activity in the Tualatin Basin, Oregon, between 2013 and 2016

October 19, 2017

USGS met with 13 local groups and organizations around the Portland, Oregon region to collect information regarding the locations of beaver dams in the Tualatin Basin. The local sources had identified beaver dams between 2013 and 2016, and data were compiled by USGS into an ArcGIS shapefile. Often, the local groups did not know the GPS coordinates of beaver dams, but they had identified beaver-affected reaches during that same time period. Therefore, a second shapefile was created to include the locations of beaver activity (including beaver chews, lodges, and dams) in the Tualatin Basin.

The Beaver Dam Locations ArcGIS shapefile shows the known locations of beaver dams in the Tualatin Basin. The Beaver Activity Locations ArcGIS shapefile shows the known locations of beaver activity (including beaver chews, lodges, and dams) in the Tualatin Basin.

Citation Information

Publication Year 2017
Title Beaver dam locations and beaver activity in the Tualatin Basin, Oregon, between 2013 and 2016
DOI 10.5066/F7PZ57QP
Authors Smith Cassandra D
Product Type Data Release
Record Source USGS Digital Object Identifier Catalog
USGS Organization Oregon Water Science Center