Rockville, MD · separated · paved
Great Seneca Highway Bicycle Route
4.4-mile paved route with 171 ft of elevation gain, signed as part of the regional cycle network, route reference “119”, separated from motor traffic.
Live · updated
Today's verdict
Great day to get the road bike out.
- 63°F air — right in road cycling's sweet spot
Best for bike-share touring today
Route map
Orange marker is the start. Click the map to enable scroll-zoom — the polyline is approximate; use Ride with GPS or Komoot for turn-by-turn.
Atmosphere
- Air temp63°FClear
- Wind12 mphS
- Rain1%Next 24h: 0.00"
- Humidity100%
Surface & daylight
- Pavementdrypaved surface
- Sunrise6:44 AM
- Sunset7:28 PM741 min remaining
Best time today
8 AM looks best — 66°F · 5 mph S wind · mostly sunny. 9 AM is a close second (74/100).
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Wind on this route
12 mph tailwind outbound — expect a 12 mph headwind on the return.
Currently 12 mph from the SSE (150°). Relative to this ride's overall bearing, a quartering tailwind.
- Leg 1 Bearing 304° · tailwind 0.4 mi
- Leg 2 Bearing 282° · quartering tailwind 0.4 mi
- Leg 3 Bearing 273° · quartering tailwind 0.4 mi
- Leg 4 Bearing 312° · tailwind 0.4 mi
- Leg 5 Bearing 327° · tailwind 0.4 mi
- Leg 6 Bearing 334° · tailwind 0.4 mi
- Leg 7 Bearing 18° · quartering tailwind 0.4 mi
- Leg 8 Bearing 15° · quartering tailwind 0.4 mi
Elevation profile
Score breakdown
Advisories & nearby alerts
About this route
- Distance
- 4.4 mi one-way (double for round-trip)
- Elevation gain
- 171 ft
- Surface
- paved
- Shape
- Out-and-back
- Traffic exposure
- separated
- Activities
- road cycling · e bike · commuting · bike share-touring
- Cycle network
- RCN · route 119
- Start
39.1334, -77.2450- City hub
- Rockville, MD
- OSM
- relation 17202907
Description sourced from OpenStreetMap relation tags and member-way geometry.