La Jarosa
La Jarosa

The hike departs from the reservoir of La Jarosa and runs through the pine forest in the neighbourhood of this reservoir. This area close to Guadarrama is a popular recreation area and has many trails that are suitable for both hikers and mountain bikes.

  • From the car park (1) we continue along the barrage until a spot where the road turns to the left with a bend. Here we enter a white-green marked trail that runs straight on (2). Further on we walk past a barrier.
  • After about 15 minutes we reach a crossroads of various trails (3). Here we take the trail most on the left and ignore the white-green marking; this trail has a white-green cross on the tree to indicate that the white-green route does not go this way. We now start to descend to the Arroyo de la Jarosa (4).
  • At the lowest point we cross this stream and then ascend again. Later we descend again and reach a bend where we turn left (5). A bit further on at a picnic area there are some forks (6). Just go straight on here. Next we walk past a barrier where we also go straight on.
  • We now reach a restaurant (7) and walk past it on the right, which brings us to an asphalt road. Further on we walk past a barrier. Directly behind we enter a trail on the right (8). Here again on a tree there is a white-green cross to indicate that the white-green route does not go here.
  • We now climb for quite some time and further on ignore a trail that joins from the left (9). Further on, where we walk over the altitude line, a trail joins from the right (10). We keep left here.
  • Further on we cross a brooklet, ascend a bit further and then reach a crossroads of four trails (11). We turn right, further uphill. We cross the stream again and thus have it at our left hand again.
  • The path ascends steeper now, becomes narrower and eventually ends at a T-junction (12) where we go right and ascend a bit further. We reach another trail (13) and turn left. We quickly reach an asphalt road (14) where we turn left again.
  • We now walk again on the white-green marked route and just follow this paved road the entire time, ignoring various side-trails. This after a long time will bring us back to the restaurant that we passed before (15). We now turn right, still following the white-green marking. This road will take us along the reservoir of La Jarosa back to the car park (1).

Route La Jarosa

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Sierra de los Porrones

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Location of this Hike

Region: Sierra de Guadarrama
Near: Guadarrama
Cubierto con lluvias
26 °C
13 °C

Fact Sheet

Duration: 3:30 hrs.
Distance: 16.0 km
Route type: Circular route
Path type: Forest trail and asphalt road
Marking: White-green (largely)
Total difference in altitude: 502 m.
Highest point: 1,447 m.
Difficulty: Easy (2/14)

Route profile La Jarosa
Last update: July 7, 2013

How to get there?

From Madrid take the A6 towards La Coruña and take exit 47 to Guadarrama. On the roundabout follow the direction Guadarrama. Once you have passed under the A-6 again at the next roundabout, go left and follow the signs to “La Jarosa”. If you keep following the signs you will eventually pass under the A-6 again and reach the reservoir. Here follow the sign to the parking lot on the right and park the car somewhere here.

GPS Coordinates:
Latitude: N 40 40.199
Longitude: W 4 07.074