Today I walked through a small section of Mira Mesa. I was on a mission to check out a cool sculpture I’d read about that stands in front of a fire station.
As I walked west along Hillery Drive from the Miramar College Transit Station, I observed what at first glance appeared like a scrubby vacant lot behind a fence. When I came to the corner of Hillery Drive and Black Mountain Road, a sign on the fence informed me that I was looking at an area of special environmental importance–a unique nature preserve!
I was walking right next to the Miramar College Vernal Pools.
Here’s a little information provided by three signs that I read:
This plot of land was originally leased to the Navy in 1931 and called Linda Vista Mesa Field, or Hourglass Field because of its distinctive shape. It was part of Camp Kearny, which was located on the site of the current Marine Corps Air Station Miramar. This field was used by the Army and Navy for dive bombing practice and emergency landings.
From 1957 to 1959, the field was used as a sports car racecourse, and from the 1970’s to 2008 what remained of the old runway was used for law enforcement training and nicknamed The Grinder.
The protected field now contains many seasonal vernal pools–a very rare type of wetland. Shallow vernal pools are wet during the rainy season–particularly in spring–then quickly turn to mud and dry out. Because of this unusual environment, a number of rare and endemic species live in vernal pool areas. In addition to teeming microscopic life and small crustaceans like the fairy shrimp, there are frogs, snakes, birds and mammals. More than 200 plant species thrive in and around vernal pools, including annual wildflowers.
One sign indicates the Miramar College Vernal Pools’ interpretive trails are open Monday through Friday from 7 am to 10:30 pm. Unfortunately, I walked by on a Saturday and had to observe this natural area from behind the surrounding fence.
If you want to read the signs, click my photos and they will enlarge.