The Tapteal Greenway is a 501(c)(3) non-profit organization founded in 1995 with the missions of preserving the rustic character of the lower Yakima River, protecting native habitats and species through conservation, enhancing recreational opportunities throughout the corridor, providing outdoor education programs, and promoting public access to and understanding of these resources.

The Tapteal Greenway is a 100% volunteer organization driven by the board of directors and funded solely by member dues, donations, and grants. The Tapteal Greenway employs no staff and has no endowment.

The primary focus of the Tapteal Greenway is the 31-mile corridor along the lower Yakima River extending from the Kiona Bend at Benton City to the mouth of the river at Bateman Island in Richland. Along the land trail portion of this corridor is the Tapteal Trail and the version on the river is identified as the Tapteal Water Trail.

This corridor includes a complex mix of federal, state, county, municipal, and private ownership as well as a variety of habitats ranging from arid shrub steppe to lush emergent marshlands.

The Yakima River and watershed is recognized as one of the most diverse, scenic, and biologically productive systems in the entire Pacific Northwest.