Columbia, MD · mostly separated · mixed

Grist Mill Trail

2.5 mi Out-and-back 266 ft gain

The Grist Mill Trail is a 5.0 mile long hiking and biking trail located in Patapsco Valley State Park in the Baltimore County side of the Patapsco Valley near Catonsville, Maryland. The paved pathway runs parallel to the Baltimore and Ohio Railroad to the north, and the Patapsco River to the south.

Live · updated Jun 13, 8:09 AM ET

Today's verdict

Marginal conditions — get the road bike out if you have to.

Headwind on this route — 17 mph headwind outbound — expect a 17 mph headwind on the return.
17 mph wind — noticeable — pacing will shift with the wind.

47 /100

47 Road

62 E-bike

Best for e-bike riding 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

75°F

Clear
Wind

17 mph

NW
Rain

0%

Next 24h: 0.00"
Humidity

69%

Surface & daylight

Pavement

dry

mixed surface
Sunrise

5:40 AM
Sunset

8:34 PM

746 min remaining

Best time today

1 PM looks best — 86°F · 6 mph NW wind · sunny. 7 PM is a close second (62/100).

9 AM

76°

Sunny

6 mph N

10 AM

80°

Sunny

6 mph N

11 AM

82°

Sunny

6 mph N

12 PM

84°

Sunny

6 mph NW

1 PM Best

86°

Sunny

6 mph NW

2 PM

87°

Sunny

6 mph W

3 PM

88°

Sunny

6 mph W

4 PM

88°

Sunny

6 mph W

5 PM

87°

Sunny

6 mph W

6 PM

88°

Partly Cloudy

5 mph W

7 PM

86°

Mostly Clear

3 mph W

8 PM

83°

Mostly Clear

2 mph W

Wind on this route

17 mph headwind outbound — expect a 17 mph headwind on the return.

Currently 17 mph from the NW (310°). Relative to this ride's overall bearing, a headwind.

Leg 1 Bearing 282° · headwind 0.2 mi
Leg 2 Bearing 286° · headwind 0.2 mi
Leg 3 Bearing 303° · headwind 0.2 mi
Leg 4 Bearing 328° · headwind 0.2 mi
Leg 5 Bearing 314° · headwind 0.2 mi
Leg 6 Bearing 320° · headwind 0.2 mi
Leg 7 Bearing 327° · headwind 0.2 mi
Leg 8 Bearing 313° · headwind 0.2 mi

Elevation profile

477 ft gain 408 ft loss Max 217' Min 46' 2.4 mi sampled

Score breakdown

75°F air Within comfort range, outside ideal

-3

−

17 mph wind Noticeable — pacing will shift with the wind.

-6

−

Headwind on this route 17 mph headwind outbound — expect a 17 mph headwind on the return.

-8

Pavement: dry Clean dry pavement — maximum grip.

About this route

Distance: 2.5 mi one-way (double for round-trip)
Elevation gain: 266 ft
Surface: mixed
Shape: Out-and-back
Traffic exposure: mostly separated
Activities: road cycling · e bike
Cycle network: LCN · route GMT
Operator: Maryland Department of Natural Resources Maryland Park Service
Start: 39.2306, -76.7294
City hub: Columbia, MD
OSM: relation 12290215

Description sourced from the Wikipedia summary.