MD · on road · mixed

Southern Maryland Potomac Heritage Trail On-Road Bicycling Route

48.2 mi Out-and-back 161 ft gain

48.2-mile mixed route with 161 ft of elevation gain, route reference “PHT”, routed on public roads.

Live · updated Jul 12, 11:08 AM ET

Today's verdict

Thunderstorms in the forecast — lightning and cyclists are a bad combination.

Thunderstorms — lightning and cyclists do not mix — get off the road before they arrive.
37 mph wind — gusty and hazardous on exposed bridges and overpasses.
Pavement: wet — wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.
Exposed + wet + windy — on road traffic in wet windy conditions — visibility and handling margin drop together.

0 /100

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0 Road

0 E-bike

Best for road cycling 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 temp

80°F

Mostly Cloudy
Wind

37 mph

E
Rain

53%

Next 24h: 0.01"
Humidity

74%

Surface & daylight

Pavement

wet

mixed surface
Sunrise

5:53 AM
Sunset

8:32 PM

565 min remaining

Best time today

8 PM looks best — 78°F · 7 mph E wind · mostly cloudy.

12 PM

82°

Chance Showers And Thunderstorms

8 mph E

—

1 PM

82°

Chance Showers And Thunderstorms

8 mph E

—

2 PM

83°

Chance Showers And Thunderstorms

8 mph E

—

3 PM

83°

Chance Showers And Thunderstorms

8 mph E

—

4 PM

83°

Chance Showers And Thunderstorms

8 mph E

—

5 PM

83°

Slight Chance Showers And Thunderstorms

8 mph E

—

6 PM

81°

Slight Chance Showers And Thunderstorms

8 mph SE

—

7 PM

79°

Slight Chance Showers And Thunderstorms

8 mph E

—

8 PM Best

78°

Mostly Cloudy

7 mph E

19

Wind on this route

37 mph crosswind — expect a 37 mph headwind on the return.

Currently 37 mph from the NE (50°). Relative to this ride's overall bearing, a crosswind.

Leg 1 Bearing 305° · crosswind 2.1 mi
Leg 2 Bearing 3° · quartering headwind 2.6 mi
Leg 3 Bearing 261° · quartering tailwind 2.1 mi
Leg 4 Bearing 236° · tailwind 2.6 mi
Leg 5 Bearing 279° · quartering tailwind 2.6 mi
Leg 6 Bearing 214° · tailwind 1.7 mi
Leg 7 Bearing 227° · tailwind 2.7 mi
Leg 8 Bearing 139° · crosswind 2.1 mi

Elevation profile

1026 ft gain 1192 ft loss Max 194' Min -7' 41 mi sampled

Score breakdown

·

80°F air Within comfort range, outside ideal

-3

−

Exposed + wet + windy on road traffic in wet windy conditions — visibility and handling margin drop together.

-12

−

37 mph wind Gusty and hazardous on exposed bridges and overpasses.

-36

−

Strong crosswind 37 mph crosswind — expect a 37 mph headwind on the return.

-3

−

Thunderstorms Lightning and cyclists do not mix — get off the road before they arrive.

-45

−

Pavement: wet Wet during the likely ride window — reduced braking, road spray, limited visibility to drivers.

-32

About this route

Distance: 48.2 mi one-way (double for round-trip)
Elevation gain: 161 ft
Surface: mixed
Shape: Out-and-back
Traffic exposure: on road
Activities: road cycling · e bike
Start: 38.4526, -76.9907
OSM: relation 18345436

Description sourced from OpenStreetMap relation tags and member-way geometry.