National Hydrography Dataset Newsletter May/June - Vol. 20 | Issue 5/6

Welcome Readers!

This month join NSGIC on July 21 from 3-4pm ET for the monthly Elevation-Derived Hydrography forum! Register at

Join the Hydrography Community Call by subscribing to the newsletter. Past recordings are available on the USGS YouTube Channel NHD Playlist and follow The National Map on Twitter - @USGSTNM