Upper Waterfall in Santa Teresa Park, 1/11/17 by Ronald Horii
There were heavy rains recently. If there's been enough rain, a waterfall in Santa Teresa Park forms in Laurel Canyon. The source is the small stock pond by the Hidden Springs Trail on the way to Coyote Peak. There is only one spot where this waterfall can be seen. It's from the Hidden Springs Trail under the Muriel Wright Center. Here are pictures of the falls.

Here are pictures of the falls from last year: https://www.facebook.com/media/set/?set=a.1051283354895186.1073742011.100000405933924&type=1&l=f133eff53c — at Santa Teresa County Park. (near Santa Teresa County Park)