Hawley Mountain is the second peak along the FS374 ridgeline north of the Harris Creek Summit. Harris Creek Summit (saddle) can be reached from Harris Creek Rd. which connects Horseshoe Bend and Placerville, Idaho. It is a dirt road in good condition.
From Harris Creek summit, FS374 is a resonably good single track road. SUV or other high clearance vehicle recommmended, but I did see a sedan parked at the base of Peak 7057! Minor rocks and ruts along the road so should be passable by most cars/trucks depending on your level of scraping desired.