The Colorado ditch map

Every dot is a real headgate or reservoir pulled from Colorado's water-rights records — companies mapped so far, more as records are verified. A pin only appears when the state's records match a company beyond doubt — no guessing at a town center.

Coordinates come from the Colorado Division of Water Resources structure records, joined to each company's earliest decreed water right. A company with several structures gets one pin — the one behind its earliest right. Companies without a verified water-rights match, or whose structure was never digitized with coordinates, aren't plotted yet; browse the full company directory for all of them.