Mostly flat maintained dirt road mostly used by ATVs. A couple shallow water crossings most times of year. Much of the trail is covered with baby head sized rocks and "Boulder Alley" is much larger rocks. Plus or Fat bike recommended. Lots of options to change the route, either riding farther up towards Sherman Glacier or coming out early at the 17mile landfill road. Crosses Eyak Corp. land, must have (free) permit- available at the Eyak Corp. office in Cordova.