Colorado

• Colorado River length · ≈2,334 km

  Southwestern United States / Mexico river; source length 1,450 miles.

• Colorado drainage basin · ≈647,500 km²

  Whole Colorado drainage basin. USGS 2026 publishes approximately 250,000 square miles; converted using 1 mi² = 2.589988110336 km² and rounded to the nearest 500 km². Not area measured from this artwork.

• United States basin states · 7 states

  Seven United States Colorado River Basin States, as described by USGS and the Bureau of Reclamation; not seven states physically crossed by the main-course line.

• Grand Canyon river-mile extent · 446 km

  Grand Canyon measured along the Colorado River from Lees Ferry (river mile 0) to Grand Wash Cliffs (river mile 277). Published NPS equivalent is 446 km; not canyon width, depth or the complete river length.

• Headwaters → natural outlet · Rocky Mountains → Gulf of California

  Rocky Mountain National Park near Grand Lake to the Gulf of California. This does not claim uninterrupted present-day flow reaches the sea.

• US Bureau of Reclamation
• US Geological Survey
• US National Park Service
• US National Park Service
• Facts: US Bureau of Reclamation (2016) / USGS (2026) / US National Park Service · Map: Natural Earth generalized river network; source line parts preserved
• Public domain

Decorative artwork, not a navigation chart. Mapped shorelines and extents are approximate; historical or modeled data are labeled.

Visual guidance · Paper proof pending.