I recognized some of the flowers, such as these Fiddlenecks.
I guessed these white flowers were either Meadow Foam or Popcorn Flowers - they are the latter.
Frying Pan / Sierra Gold Cups/ or Lobb's Poppy - whew!
Look at this - doesn't it look as if some impressionist artist has swept a brush along and up the hillside?
Ok, vow to self: MUST do some more wildflower hunting before the summer heat sets in and all the green stuff turns to brown crispies.