Who actually manages America's public boat ramps

There is no national boat ramp authority and no national list. Ownership is split between federal land agencies, state fish-and-wildlife or natural-resources departments, counties, municipalities, and utilities that hold reservoir licences. Each publishes its own inventory, in its own schema, on its own schedule — which is why this atlas exists.

Why it matters in practice

• Federal ramps (Army Corps, Forest Service, Bureau of Reclamation, Fish and Wildlife Service) follow federal rules on the water and local rules in the lot, and are the most likely to have a vault toilet and no fee.
• State agency ramps are usually where a state launch permit or fishing licence requirement applies.
• County and municipal ramps have the widest variation in fees and hours, and are the most likely to be gated at night.
• Utility-managed reservoir ramps close on drawdown schedules that have nothing to do with the season.

Every ramp page names its operator where the source published one, and links the exact agency record the page was built from. If a page and reality disagree, the agency record is the thing to argue with — and the report button on the page is how you tell us.