From I-70, take the Eagle exit and drive south across the river. At the traffic circle just across the river, head west on the old US 6 highway. Follow sings to the Sylvan lake State Park turnoff which comes at the next traffic circle. Drive south and SE on the Sylvan Lake Road through residential areas to an intersection with the Brush Creek Road. The Brush Creek road is variously identified as CR307 or FR400. Turn right (SE) and drive several miles, passing an extensive golf course on your right. A little past the golf course, turn left (east) onto FR415 at a major, marked intersection. From this intersection, it is 6 miles to the Yeoman Park Campground on what is called the East Brush Creek Road. Continue on past the turnoff for the campground driving SE. Do not take the turnoff on the left for Fulford, 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.