Data downloads

The primary stream line and subcatchment polygon data, and associated spatial and non-spatial tables, are available for download as a geopackage (gpkg) file. See the technical details tab for a summary of the tables and their relationships and an example of accessing and using the data. Past versions of the database are available here.

The large table of (overlapping) catchment boundaries for all reaches is available as a separate gpkg file.

The six 5-m gridcell rasters used in calculations of environmental variables are also available for download: the digital elevation model (r_dem)1, flow distance to stream (r_d2str), flow distance to outlet (r_d2ol), sites (r_site, matching the site field in the subcs table of the databse), impervious cover (r_imp_series, four layers: 2005, 2014, 2018, 2022), and tree cover (r_tree_series, four layers: 1750, 2006, 2018, 2022).

mwstr_network_functions.R contains several helper functions for working with the database in R. (all_us(), all_ds(), plot_allus()).


  1. See the terra function shade for an example of converting the dem into slope, aspect and hillshade rasters.↩︎