We have stayed at East Shore RV Park located north of I-10 and East of the 57, in San Dimas. Near the Pomona KOA that was mentioned. It is a nice park. Lots of space between sites. It is about the best park within a reasonable driving distance to Pasadena.
Joe in Seattle; winter at Motorcoach CC, Indio, CA
2015 Essex 4503
2019 Lincoln Nautilus toad