Following Water Movement Using Dye Tracing (U.S. National Park

This water tracing dye is non-staining and biodegradable, therefore it will not harm equipment, fish, or wildlife.

Fluorescent Water Tracing Dye - Red or Green - 1 Gallon

Family Investigated After Turning Waterfall Blue In Gender Reveal Stunt

USGS Dye-Tracing Study on the Kansas River to Aid in Protecting Water Supplies

Fillmore County Discovery Area - Driftless Karst Trail

Following Water Movement Using Dye Tracing (U.S. National Park Service)

Media Alert: USGS Dye Tracing Study on the Kansas River to Aid in Protecting Water Supplies

Utilizing anthropogenic compounds and geochemical tracers to identify preferential structurally controlled groundwater pathways influencing springs in Grand Canyon National Park, Arizona, USA - ScienceDirect

How the Chicago River Gets Dyed Green for St. Patrick's Day - Thrillist

Dye used to trace groundwater - Delaware Water Gap National Recreation Area (U.S. National Park Service)

Streams at Mammoth Cave have been dyed green, but it's not for St. Patrick's Day

Dye tracing and concentration mapping in coastal waters using unmanned aerial vehicles

Dye Tracing