From I-70, take the Eagle exit and drive south across the river. At the traffic circle (3rd roundabout) just across the river, head west on the old US 6 highway. Follow signs to the Sylvan lake State Park turnoff which comes at the next traffic circle, one mile from the previous circle. Drive south and SE on the Sylvan Lake Road through residential areas to an intersection with the Brush Creek Road just after crossing the creek. The Brush Creek road is variously identified as CR307 or FR400. Turn right (SE) and drive 11.8 miles passing an extensive golf course on your right along the way. Past the golf course, at 11.8 miles, turn left (east) onto FR415 at a major, marked intersection. This is a well-graded dirt road that they make efforts to reduce dust on. From this intersection, it is another three miles to where a set of switchbacks begin, then 2.7 more miles to the Yeoman Park CG. Continue on past the turnoff for the campground driving SE. Do not take the turnoff on the left for Fulford, (which road also accesses Nolan Lake TH, and New York Lake TH), but continue on to the terminus of FR415 and a small parking area for the trailhead. The last two miles of this road from Yeoman Park are the only rougher section of road. You might prefer to drive a vehicle with better clearance for this final section but we have seen standard passenger vehicles make it back here. The parking area receives a lot of weekend day use for those hiking up to see Fulford Cave. Walk to the SE end of the parking area and continue following a road bed a short distance to the actual trailhead for two trails: the Iron Edge trail #1873 that leads to the Peter Estin Hut and the Lake Charles Trail #1899. The Lake Charles Trail is the left fork. If you find yourself walking by some cabins, you're on the wrong trail. We measured this trailhead as 19.0 miles from the second traffic circle in Eagle.
The nicest place to camp is the Yeoman Park CG, two miles back from the TH. There's a nice vault toilet setup here and some designated, fee camping sites. At the actual trailhead, there's a more primitive fee campground, still with vault toilet and six renovated sites, some with tent platforms. Cost is only $8 per night! There is no water and getting stream water would be difficult. Closest water supply is a scummy pond near the parking area. Both campgrounds fill up quickly on summer weekends.