One basin, every drop.
The watershed, from the first seep to the sea. Headwaters, confluences, estuaries, and the groundwater underneath.
Headwaters
Where the basin begins — springs, seeps, and first-order streams.
first orderConfluence
Where two rivers meet and the basin grows a name.
the mergeEstuary
Where the basin meets the sea, and fresh meets salt.
tidalAquifer
The basin below — groundwater, moving slowly.
rechargeSnowmelt
The frozen reserve that feeds the rivers all spring.
seasonal04
The basin, in lines
Contours and flowlines — one watershed, drawn live.
watershed divideflow directiongauge station