
V is for Vernal PoolThis is the definition of a Vernal Pool: A vernal pool is seasonal pool that is present in the spring and dries up in late spring or summer. It doesn't have water in it again until winter rains recreate the pool. This makes it fundamentally different from a year-round lake. In particular, fish are absent, since they require year-round water.
Here, in Murrieta, we have a wonderful example, the Main Pool on the Mesa de Colorado. This is the largest and best vernal pool at the Santa Rosa Plateau Ecological Reserve. Some years there is no pool at all, no rain means no water; not water equals no pool.
Here are some more photos of the Vernal Pools:




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