These Oregon-native river trees provide shade after growing for about a decade, but often take 70 years to reach full size.

Their shallow roots spread far and wide, typically at least twice as broad as the canopy.

The Bigleaf Maples that characterize the historic forest at the heart of Eugene were likely transplanted from the Willamette River over a century ago.

These trees struggle more than most with sidewalks, so any peaceful solution that accommodates their roots could help the majority of street trees.