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 Nov 7, 3:37 AM ET

Today's verdict

Skip today — the bike can wait.

37 mph wind — gusty and hazardous on exposed bridges and overpasses.
55°F air — right in road cycling's sweet spot
Headwind on this route — 37 mph headwind outbound — expect a 37 mph headwind on the return.

33 /100

skip

33 Road

47 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

55°F

Cloudy
Wind

37 mph

NW
Rain

1%

Next 24h: 0.00"
Air quality

AQI 27

PM2.5 · Good

Surface & daylight

Pavement

dry

mixed surface
Sunrise

6:41 AM
Sunset

4:59 PM

803 min remaining

Best time today

2 PM looks best — 58°F · 14 mph W wind · mostly sunny. 4 AM is a close second (67/100).

4 AM

48°

Mostly Cloudy

12 mph NW

5 AM

47°

Mostly Cloudy

10 mph NW

6 AM

46°

Mostly Sunny

9 mph NW

7 AM

45°

Sunny

10 mph NW

8 AM

46°

Sunny

12 mph NW

9 AM

51°

Sunny

13 mph NW

10 AM

53°

Sunny

13 mph NW

11 AM

55°

Mostly Sunny

13 mph NW

12 PM

57°

Mostly Sunny

13 mph NW

1 PM

58°

Mostly Sunny

13 mph NW

2 PM Best

58°

Mostly Sunny

14 mph W

3 PM

58°

Mostly Sunny

15 mph W

4 PM

57°

Mostly Sunny

15 mph W

Wind on this route

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

Currently 37 mph from the WNW (300°). 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

55°F air Right in road cycling's sweet spot

+10

−

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

-36

−

Headwind on this route 37 mph headwind outbound — expect a 37 mph headwind on the return.

-8

Pavement: dry Clean dry pavement — maximum grip.

AQI 27 Clean air

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.