Colorado Railfans Live
Colorado rail tracking: Denver RTD light rail + commuter (A/B/G/N lines), Union Pacific Moffat Tunnel + Tennessee Pass + Joint Line, BNSF/UP shared Front Range corridor, Amtrak California Zephyr + Southwest Chief, Royal Gorge tourist rail.
Colorado is active right now.
Everything a railfan keeps in browser tabs — one app.
Live Passenger Rail
Amtrak — live tracking from official GTFS-realtime feeds. Schedule estimates when realtime drops; every marker labeled with its data confidence.
Railfan Spots
Colorado-curated railfan locations with safety notes, parking, best time of day, and access rules.
Freight & community sightings
RTD, Union Pacific, BNSF — community-tracked. No public realtime feeds exist for Class I freight (BNSF, UP, CSX, NS, CPKC, FEC, CN, KCS) so we surface them via railfan-reported sightings only. Every entry tagged with confidence + freshness.
Personal Logbook
Private logbook to record every catch with locomotives, tags, locations, and dates. Search and stats included.
AI Railfan Assistant
Clean up messy sighting notes, summarize spots, plan trips, check safety. Every AI suggestion is reviewed before save.
Colorado-First
Built locally for Colorado's mainlines and depots — railfan-built, by people who know the ground.
- Stay on public property. Never trespass on railroad property.
- Obey all signs, crossing gates, and law enforcement instructions.
- Train data may be delayed, incomplete, estimated, or community-reported — do not use this app for safety-critical decisions.
- Freight sightings are community reports, not official railroad tracking. Treat them as anecdotal.