Decided to try something different and started at Forsee Creek to Shields, Anderson, San Bernardino East to West then descended via Johns Meadow. Great views, variation in terrain, and highly recommended except I underestimated the heat and only took 3L of fluid. My dog drank 1L and I ran out the last two hours. She was able to soak and drink at one small spring before the Johns Meadow split and at two larger creeks in the meadow but paranoid me decided not to drink from any and left the filter and purification tabs at home. Big mistake on a hot day that hit 80 in Angeles Oaks. GPS listed about 18.5 miles and 4436 elevation gain. This route is less traveled and I only ran into people descending from San B.