Iconic US road trips · Scenic road guides
Overseas Highway — Key Largo to Key West: Florida Driving Guide
Explore the mapped Overseas Highway — Key Largo to Key West segment in Florida, with an exact route outline, downloadable GPX, access warnings and official condition checks.
- Distance (GPX)
- 98.7 mi 158.8 km
- Shape
- Scenic segment
- Driving time (planning estimate)
- 3 h–4 h 35 min
- Terrain elevation (approx.)
- 0–50 ft 0–10 m
- Start
- US 1 in Key Largo
- End
- US 1 at the Key West approach
Time covers this GPX one-way segment only, excluding the approach, return and stops. Traffic, weather, construction, road conditions and driving pace can change it substantially; it is not a live ETA.
Map/source review — not a guarantee the road is open today.
Road conditions and access can change. RevRoute does not provide live closure information. Check the official source before departure. Follow posted restrictions and never bypass a closed gate.
The drive
This US 1 road itinerary connects Key Largo with the Key West approach. It follows the vehicle highway, not the parallel Overseas Heritage bicycle and pedestrian trail, and excludes local sightseeing detours.
The distance shown is measured along this specific connected road trace. It excludes your approach to the starting point, sightseeing spurs and any return journey. Inspect the endpoints and map before deciding whether it fits your trip.
This is an untimed planned road itinerary reconstructed from licensed OpenStreetMap road nodes, not a recording of a completed drive. Road-node connectivity and mapped driving direction have been checked; live access, unmapped restrictions and road-surface conditions are not guaranteed.
RevScore: this route's curviness
3/100 Straight
Calculated from the bends and distance in this exact mapped route using RevRoute's existing scoring formula. Heading-change density: approximately 15° per km.
A geometry-based route score, not a user review, driving-performance ranking, difficulty rating or safety assessment. Elevation is not part of the current formula. Recorded-drive scores may differ because GPS sampling and speed weighting differ. Never change your speed to improve a score.
Recorded drives & leaderboard
No verified drive totals or leaderboard entries are published on this guide yet. We do not infer them from page views, GPX downloads or route previews.
Record this route in RevRouteHow these planning facts were checked
The OSRM car-routing model was checked against 99 points along this exact GPX, including its loop or segment shape—not simply the fastest route between the endpoints. The 3 h–4 h 35 min range uses rounded planning allowances of 15–75% above the model's no-live-traffic baseline. These allowances are not measured traffic statistics or a guarantee; allow extra time for lunch, photographs and other stops.
Terrain elevations were sampled at 154 points along the GPX using the USGS NED approximately 10-metre terrain dataset hosted by Open Topo Data (dataset snapshot: April 23, 2020). The displayed range is rounded to 50 feet / 10 metres. It is an approximate sampled range—not an exact road minimum/maximum, summit height or cumulative elevation gain. Terrain can differ from the road surface around tunnels, bridges and road cuts.
Facts checked October 21, 2026. Sources are linked under “Guide sources.” The original GPX remains an untimed map trace; these modeled facts are not recorded-drive measurements.
Driving notes
Respect road users and local communities
Observe posted limits, allow safe passing and use designated stopping places. RevScore describes route geometry; it is not an invitation to drive faster.
Inspect the exact segment
US 1 in Key Largo to US 1 at the Key West approach. A matching road name alone does not mean a downloaded file covers every part of the road.
Places along the route
US 1 in Key Largo
Mapped starting area; arrange legal parking and supplies separately.
US 1 at the Key West approach
End of this one-way trace. Plan onward travel or a return separately.
Seasons & weather
Bridges, congestion, crashes and tropical weather can substantially affect travel. Check Florida 511 and official local emergency instructions. This guide is not an evacuation plan or an assurance that the highway is open.
Cautions
Check official access before departure
Bridges, congestion, crashes and tropical weather can substantially affect travel. Check Florida 511 and official local emergency instructions. This guide is not an evacuation plan or an assurance that the highway is open.
Questions drivers ask
Is this road open today?
This page is not a live closure service. Use the official condition links and follow all posted restrictions; a continuous GPX does not confirm access.
Is this a recorded drive?
No. This GPX is an untimed planned road trace from attributed OpenStreetMap data. It contains no recorded speed or personal-best time.
More Iconic US road trips roads
-
Kancamagus Highway: New Hampshire Driving Guide
Explore the mapped Kancamagus Highway segment in New Hampshire, with an exact route outline, downloadable GPX, access warnings and official condition checks.
Planning drive time: 1 h 10 min–1 h 50 min — excludes stops; conditions vary.
-
Angeles Crest Highway: California Driving Guide
Explore the mapped Angeles Crest Highway segment in California, with an exact route outline, downloadable GPX, access warnings and official condition checks.
Planning drive time: 1 h 45 min–2 h 35 min — excludes stops; conditions vary.
-
Going-to-the-Sun Road: Montana Driving Guide
Explore the mapped Going-to-the-Sun Road segment in Montana, with an exact route outline, downloadable GPX, access warnings and official condition checks.
Planning drive time: 2 h 10 min–3 h 20 min — excludes stops; conditions vary.
-
The Snake — Mountain City to South Holston Lake: Tennessee / Virginia Driving Guide
Explore the mapped The Snake — Mountain City to South Holston Lake segment in Tennessee / Virginia, with an exact route outline, downloadable GPX, access warnings and official condition checks.
Planning drive time: 35 min–50 min — excludes stops; conditions vary.
Take it on the road
Get RevRoute
Free to download for iPhone and Android. Download the GPX above and import it, or open Routes > Community and look for Overseas Highway — Key Largo to Key West. Public guide links do not open the app directly.