It's something he's done come rain, shine, or the August 2020 wildfires that scorched the redwoods that flank Big Creek Road.

"This place was an inferno", Greenwood recalls.

Barely escaping the flames: 28,000 inch-long coho salmon, inside large pools topped by canvas domes that come into view as we round the bumpy bend into Kingfisher Flats Hatchery.