James,
You're in a very beautiful spot. Enjoy!
You can tell what the pine is by counting needles. If there are 5 in each bunch/fascicle, then it's Limber (Pinus Flexilis). If 2 needles it's probably Lodgepole (Pinus Contorta). And if 3, then Ponderosa (Pinus Ponderosa). Sometimes the ponderosa can have 2, but generally 3. There are also Bristlecone pines in CO, but they are generally much higher up; they also have 5 needles.
Fir and Spruce can be a bit harder to tell apart. But you could have Douglas Fir, Sub-alpine Fir, Engelmann Spruce and Colorado Spruce all in your area.