I bought a new book called Watercolor Tips and Techniques, by Cathy Johnson. I am working my way through, from brushstrokes basics to mixing colors. I did not have my good brushes or tube paints with me in the mountains, but I had fun playing with a few pages.
This page was an attempt to mix some juicy colors by letting the paints mix on the paper, rather than on the palette.
This one was just making a color wheel and experimenting to see which were warm or cool colors. In the mountains I have a set of 24 Pelikan pan watercolors. I forgot how pretty some of the colors are!