The San Dieguito River Valley Regional Open Space Park Joint Powers Authority, also known as the San Dieguito River Park, is the agency responsible for creating a greenway and natural open space park in the San Dieguito River Valley. The vision of the River Park is to preserve and interpret the natural and cultural resources of the river valley from the river’s source at Volcan Mountain, north of Julian, to the Pacific Ocean in Del Mar.
The San Dieguito River Valley is rich in all sorts of natural wonders through our Nature Notebook. Learn more about specific resources by exploring the categories below. Be sure to check the Events Calendar to see what upcoming opportunities you have to learn more about these natural resources from experts in the field!
Latest Posts from the Nature Notebook
Ticks are native insects that carry dangerous vector-borne illnesses. Ticks can be found in all sections of the San Dieguito River Park. While they are most commonly found in the warmer months, they are active all year around. Ticks in San Diego County have tested positive for Lyme Disease, Rocky Mountain Fever, and Tularemia, also… Read More » The San Dieguito Monthly Bird Count identified 119 species in April. No new bird species were seen this month, so the cumulative species total remains at 236. Click here for the PDF document with the detailed monthly results through April 2018. According to bird count leader Jayne Lesley, many migrating Western Kingbirds were seen throughout… Read More » The San Dieguito Monthly Bird Count identified 112 species in March, which is the second highest March count out of 9. A Grace’s Warbler was seen for the first time near Crest Canyon, so the cumulative species total increases to 236. Click here for the PDF document with the detailed monthly results through March 2018.… Read More » The San Dieguito Monthly Bird Count identified 101 species in February. No new bird species were seen this month, so the cumulative species total remains at 235. Click here for the PDF document with the detailed monthly results through February 2018. Between bird counts, it looks like the ospreys laid eggs in the western platform… Read More » The San Dieguito Monthly Bird Count identified 108 species in January. No new bird species were seen this month, so the cumulative species total remains at 235. Click here for the PDF document with the detailed monthly results through January 2018. According to bird count leader Jayne Lesley, there was an abundant assortment of ducks,… Read More »
Tick Talk
April 2018 San Dieguito Lagoon Bird Survey Results
March 2018 San Dieguito Lagoon Bird Survey Results – NEW SPECIES!
February 2018 San Dieguito Lagoon Bird Survey Results
January 2018 San Dieguito Lagoon Bird Survey Results
