IE they may not be in the first 3 canyons you look in but the fourth will hold many deer. Don't overlook any areas. Other hunters overlook these spots too and deer will gravitate to them. Make sure and bring warm clothes. The daytime temperatures can reach into the 60-70's but quickly drop during morning and evening hours.
Rain can come at anytime.
Also, you can contact the regional game managers of the area and find out more info over the phone. They will also use dry washes as escape routes. All of this onfo is covered in The book I described above. If I can answer any more specific Questions, drop me an e-mail.