San Lorenzo River

Course Information

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Photo Credit: Carlos Castro

Course Surface

(Elevation changes determined using an Avocet altimeter.)
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Distance Elevation Gain Single Track Dirt Road Asphalt
10 km 800' 59% 41% 0%
Half Marathon 2,175' 58% 42% 0%
30 Km 3,000' 62% 38% 0%
Marathon 4,350' 58% 42% 0%
50 km 5,175' 60% 40% 0%

 

 

 

 

Course Map (click on image for a bigger map.)

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Elevation Profiles

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10 Km
Elevation Gain: 800'
(Per Avocet Altimeter)
Half Marathon
Elevation Gain: 2,175'
(Per Avocet Altimeter)
30 Km
Elevation Gain: 3,000'
(Per Avocet Altimeter)
Marathon
Elevation Gain: 4,350'
(Per Avocet Altimeter)
50 Km
Elevation Gain: 5,175'
(Per Avocet Altimeter)
(Data from Barbara's Garmin for the 50 Km run.)

Course Description

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Direction Course Color Distance (mile) Aid Station (mile)
Segment Cummulative Location Next
             
10 Km
  Start: Harvey West Park - Upper Glen Picnic Area
6.3
Counterclockwise Parade Lap (Lawn) Yellow
0.2
0.2
Go NORTH Harvey West Trail Yellow
0.5
0.7
Stay LEFT Lookout Trail Yellow
0.5
1.2
Turn RIGHT Spring Trail Yellow
1.3
2.4
Go STRAIGHT Rincon/Rincon Connector Trail Yellow
0.8
3.3
Hwy 9 (Turnaround - no aid)
Turnaround Rincon/Rincon Connector Trail Yellow
0.8
4.1
Go STRAIGHT Spring Trail Yellow
1.3
5.3
Turn LEFT Lookout Trail Yellow
0.5
5.8
Stay RIGHT Harvey West Trail Yellow
0.5
6.3
     
    Miles
6.3
6.3
    Kilometers
10.2
     
Half Marathon
  Start: Harvey West Park - Upper Glen Picnic Area
6.9
Counterclockwise Parade Lap (Lawn) Pink
0.2
0.2
Go NORTH Harvey West Trail Pink
0.5
0.7
Stay LEFT Lookout Trail Pink
0.5
1.2
Turn RIGHT Spring Trail Pink
1.3
2.4
Go STRAIGHT Rincon/Rincon Connector Trail Pink
0.9
3.3
Turn RIGHT Rincon Fire Road Pink
1.5
4.9
Turn LEFT Big Rock Hole Trail Pink
0.5
5.4
Go STRAIGHT Rincon Fire Road/River Trail Pink
0.5
5.9
Stay LEFT River Trail Pink
1.0
6.9
Henry Cowell Picnic Area
6.7
Turnaround River Trail Pink
1.0
7.8
Stay RIGHT Rincon Fire Road/River Trail Pink
0.5
8.3
Go LEFT (Middle) Big Rock Hole Trail Pink
0.5
8.8
Turn RIGHT Rincon Fire Road Pink
1.5
10.4
Turn LEFT Rincon Connector/Rincon Trail Pink
0.9
11.3
Go STRAIGHT Spring Trail Pink
1.3
12.5
Turn LEFT Lookout Trail Pink
0.5
13.0
Stay RIGHT Harvey West Trail Pink
0.5
13.5
     
    Miles
13.5
13.5
     
Marathon (Complete Half Marathon course twice)
    Miles
26.8
             
30 Km
  Start: Harvey West Park - Upper Glen Picnic Area
6.9
Counterclockwise Parade Lap (Lawn) Pink
0.2
0.2
Go NORTH Harvey West Trail Pink
0.5
0.7
Stay LEFT Lookout Trail Pink
0.5
1.2
Turn RIGHT Spring Trail Pink
1.3
2.4
Go STRAIGHT Rincon/Rincon Connector Trail Pink
0.9
3.3
Turn RIGHT Rincon Fire Road Pink
1.5
4.9
Turn LEFT Big Rock Hole Trail Pink
0.5
5.4
Go STRAIGHT Rincon Fire Road/River Trail Pink
0.5
5.9
Stay LEFT River Trail Pink
1.0
6.9
Henry Cowell Picnic Area
4.6
Turnaround River Trail Orange
1.0
7.8
Stay RIGHT Rincon Fire Road/River Trail Orange
0.5
8.3
Turn LEFT Ridge Fire Road Orange
0.7
9.0
Turn LEFT Pine Trail Orange
0.6
9.6
Turn LEFT Eagle Creek Trail Orange
0.9
10.5
Stay RIGHT River Trail Orange
1.0
11.4
Henry Cowell Picnic Area
6.7
Turnaround River Trail Pink
1.0
12.4
Stay RIGHT Rincon Fire Road/River Trail Pink
0.5
12.9
Go LEFT (Middle) Big Rock Hole Trail Pink
0.5
13.4
Turn RIGHT Rincon Fire Road Pink
1.5
15.0
Turn LEFT Rincon Connector/Rincon Trail Pink
0.9
15.8
Go STRAIGHT Spring Trail Pink
1.3
17.1
Turn LEFT Lookout Trail Pink
0.5
17.5
Stay RIGHT Harvey West Trail Pink
0.5
18.1
     
    Miles
18.1
18.1
    Kilometers
29.1
             
50 Km
  Start: Harvey West Park - Upper Glen Picnic Area
6.9
Counterclockwise Parade Lap (Lawn) Pink
0.2
0.2
Go NORTH Harvey West Trail Pink
0.5
0.7
Stay LEFT Lookout Trail Pink
0.5
1.2
Turn RIGHT Spring Trail Pink
1.3
2.4
Go STRAIGHT Rincon/Rincon Connector Trail Pink
0.9
3.3
Turn RIGHT Rincon Fire Road Pink
1.5
4.9
Turn LEFT Big Rock Hole Trail Pink
0.5
5.4
Go STRAIGHT Rincon Fire Road/River Trail Pink
0.5
5.9
Stay LEFT River Trail Pink
1.0
6.9
Henry Cowell Picnic Area
4.6
Turnaround River Trail Orange
1.0
7.8
Stay RIGHT Rincon Fire Road/River Trail Orange
0.5
8.3
Turn LEFT Ridge Fire Road Orange
0.7
9.0
Turn LEFT Pine Trail Orange
0.6
9.6
Turn LEFT Eagle Creek Trail Orange
0.9
10.5
Stay RIGHT River Trail Orange
1.0
11.4
Henry Cowell Picnic Area
6.7
Turnaround River Trail Pink
1.0
12.4
Stay RIGHT Rincon Fire Road/River Trail Pink
0.5
12.9
Go LEFT (Middle) Big Rock Hole Trail Pink
0.5
13.4
Turn RIGHT Rincon Fire Road Pink
1.5
15.0
Turn LEFT Rincon Connector/Rincon Trail Pink
0.9
15.8
Go STRAIGHT Spring Trail Pink
1.3
17.1
Turn LEFT Lookout Trail Pink
0.5
17.5
Stay RIGHT Harvey West Trail Pink
0.5
18.1
Harvey West Park
6.7
Go NORTH Harvey West Trail Pink
0.5
18.6
Stay LEFT Lookout Trail Pink
0.5
19.1
Turn RIGHT Spring Trail Pink
1.3
20.3
Go STRAIGHT Rincon/Rincon Connector Trail Pink
0.9
21.2
Turn RIGHT Rincon Fire Road Pink
1.5
22.8
Turn LEFT Big Rock Hole Trail Pink
0.5
23.3
Go STRAIGHT Rincon Fire Road/River Trail Pink
0.5
23.8
Stay LEFT River Trail Pink
1.0
24.7
Henry Cowell Picnic Area
6.7
Turnaround River Trail Pink
1.0
25.7
Stay RIGHT Rincon Fire Road/River Trail Pink
0.5
26.2
Go LEFT (Middle) Big Rock Hole Trail Pink
0.5
26.7
Turn RIGHT Rincon Fire Road Pink
1.5
28.3
Turn LEFT Rincon Connector/Rincon Trail Pink
0.9
29.1
Go STRAIGHT Spring Trail Pink
1.3
30.4
Turn LEFT Lookout Trail Pink
0.5
30.8
Stay RIGHT Harvey West Trail Pink
0.5
31.4
     
    Miles
31.4
31.4
    Kilometers
50.5