like jj said carpenter canyon is an "in & out" meaning you have to come back out the way you went in. hat is unless you're able to get on forest service road 568 and take it over to wallace canyon then conect to wheeler pass road. it's a cool drive with some great country to see.
trout is a big old graded road that goes back to a large gate and private property sign. there is a numbered forest service road, 536, that breaks off to the right a few miles in and that road goes thru lost cabin canyon then wanders up to lovell summit and from there you go down to the black top in lovell canyon. lovell summit may not be do-able as it's got some elevation and has been known to get snowed closed. the clay up there can get slick as snot and fills tires making them tractionless unless you're running some serious mud tires. if you do get over lovell summit you make a right at the black top and it will take you back to 160 and a right turn there will take you back to pahrump.
wheeler on the pahrump side is a graded road to the pass but it is even higgher then lovell and is most likely closed way short of the top due to snow. it's still a great drive thru the trees until you're forced to turn around.