Above Vallecito, the river is going to be pretty much shut down with snow and ice. Below, flows will be low and the best bet may be the Ute water stretches.
Patterns/Bugs:
Nymphs: Prince nymphs 14-18, Pats Rubberlegs 8-12 or Jigged Pats 8-12, Black and Blue Copper Johns 14-18, Pheasant tails 18-22, Juju Baetis 18-20, Disco Midge 18-20, Rainbow Warrior 18-22, Flash Midge Pupa 18-22.