These directions are taken from the White River National Forest website: "From I-70 take Exit 203, Frisco/Breckenridge, and travel south on HWY 9 through Frisco to the intersection of HWY 9 and Boreas Pass Road on the south side of Breckenridge. Proceed south on HWY 9 for approximately 2.1 miles and turn right onto Spruce Creek Road (Cty Rd 800). Proceed uphill on a good quality dirt road for approximately 0.1 mile and then bear left on main road through the intersection. After approximately 1.1 miles you will arrive at the parking area."
4WD and higher clearance vehicles may be able to continue farther. Continue SW on CR800 to another parking area at these coordinates: N 39° 25' 42.93 W 106° 04' 11.43"; or even farther to some barricades with very limited parking here: N39° 25' 33.20 W 106° 04' 22.09". It's also possible to head up RD 803 to Lower Crystal Lake.
For Atlantic and Pacific Peaks, you will want the Spruce Creek Trail to the Mohawk Lakes. Trails Illustrated labels this as Forest Trail #58 from the passenger car parking or 58.1A from the 4WD parking. Follow the link embedded in these directions for more detailed information: https://www.fs.usda.gov/recare...
The Spruce Creek Road initially passes through private property. Do not attempt to camp anywhere before the passenger car TH parking area. While car camping may be possible, there's precious little along the road where you could actually set up a tent, even at the 4WD parking areas referenced.