Home About Services Programs Divisions FAQ Education Projects Codes and Regulations Learn more about the Edwards Aquifer and Austin’s groundwater. Aquifer Brochure Youth Education Groundwater Curriculum Karst Lesson High - video Hydrology Lesson - video Salamander Lesson - video Salamander Images Excel Student Data Sheet Scattergram Instructions Aquifer Threats Lesson - video Hydrofiles Groundwater to the Gulf Teacher Training Virtual Reality Tour of Wildflower and Millennium Caves Take a Hike (or a canoe!) to some of Austin's Springs Salamanders Barton Springs Audio Tour Map Audio (download MP3 as zipped file) Audio (Stream file) East Austin Environmental Initiative East Austin Environmental Initiative (Spring/Summer 2020) Finding Fresh Flow for Fish Bull Creek District Park - Environmental Features Hike East Austin Environmental Initiative (Fall/Winter 2019) East Austin Environmental News (Fall/Winter 2018) View all blog posts