From I-70, take the Georgetown Exit 228 and drive east on 15th St. to a traffic circle. Proceed 1/4 of the way through the circle and exit south onto Argentine St. Drive south on Argentine then turn left onto 11th St. Turn right onto Rose St. and head south into the main part of town. Continue all the way to 2nd St. where you'll turn left and will be on SH 381. This is the Guanella Pass Road. Follow it south several miles past the Guanella Pass Campground to a sharp curve in the road. On the east side of the highway, there's a large parking area for day-use and a smaller parking area as you turn right onto the Naylor Lake road #381.
Drive up the road to the west. The trailhead parking for Silver Dollar Lake will come in just over .6 mile. The parking area is not very large so on weekends you may be forced back down to the highway parking. Go ahead and park here if you have not already parked back at the two spots by the highway. If you continue on #381 a little farther, you'll come to a gate and Private Property warnings. Naylor Lake is on Private Property. Do not attempt to drive in.
The closest National Forest Campground is the Guanella Pass CG just north of the turnoff for #381 to Naylor Lake. The camground is located on both side of the highway and requires a fee. There is also the Clear Lake CG just south of Lower Cabin Creek Reservoir. The Clear Lake CG has 8 sites, drinking water and vault toilet. The Guanella Pass CG has 17 sites, water and vault toilets. As usual for Front Range camping, expect these to be occupied to the full on weekends. There are also a few primitive sites as you drive up the Naylor Lake road.