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
If you have been to the park lately you might have noticed these beautiful plants blooming. Its scientific name is Hesperoyucca whipplei but it also goes by chaparral yucca, Quixote yucca, foothill yucca, Spanish dagger, and even Our Lords Candle (because of the beautiful glow when the sunlight was directly behind the blossoming plant). One… Read More » We had another new species in October! A Green-tailed Towhee! Note we had 115 species which is quite a record for October. Normally we see around 90-100 species. This brings our cumulative total species, over 10+ years of the count, to 249 species! Click here for the PDF document with results for the October 2020 count. Click here for the… Read More » We had two new species in September. Three Baird’s sandpipers in area#3 and a Tricolored Heron flying by the lagoon outlet. This brings our cumulative total species, over 10+ years of the count, to 248 species! Click here for the PDF document with results for the September 2020 count. Click here for the PDF document with the detailed monthly results through September… Read More » We had one new species in the August count. Two juvenile Gull-billed terns were seen on Sunday August 2nd. This brings our cumulative total species, over 10+ years of the count, to 246 species. All of the Least Tern fledglings have now departed the nesting sites, that brings the total to 10 chicks. We wish… Read More » We had a pretty good month with 91 species. Usually we are in the 70’s or 80’s for July. No new species, so we are steady at 245 cumulative species. This month is also very special, for the first time since the Least Tern nesting sites were established at the San Dieguito Lagoon we have… Read More »
Mighty Moths
October 2020 San Dieguito Lagoon Bird Survey Results
September 2020 San Dieguito Lagoon Bird Survey Results
August 2020 San Dieguito Lagoon Bird Survey Results
July 2020 San Dieguito Lagoon Bird Survey Results
