Curtis,
Please accept my condolence for the loss of your Father. I'm very sorry to read this. As others have said, Mt. Diablo is a pretty special place for a reflective ride.
In March of last year, my Father had passed away. My three Brothers and I, as well as an "Honory Brother" did a ride up Diablo in his memory too. It was quite a special ride. Enjoy each turn of the pedal.
Regards,
BR