Originally Posted by ken123 View Post
From Enumclaw / Greenwater the Naches Trail will cross the Cascade mountains all on 4x4 trail. On the eastern side it will terminate at Forest Service (FS) Rd 1913. Once you hit that road turn right and drive maybe 1/2 block to the main FS Rd 19..... that paved road will take you all the way down to Hwy 410 near Cliffdell.
This puts you on the south side of Manastash Ridge from Cle Elum. To reach Cle Elum you need to climb up and over Manastash Ridge and drop down to I-90 on the north. You'll need a decent trail map to make it through the Manastash Ridge trails (take FS Rd 1708 up to the top of the ridge, then Tripod Flats trail to Manastash Campground, from there work your way on gravel roads to Cle Elum or backtrack to Ellensburg via the Manastash Rd). You can also head up Kaner Flats Trail or take some other FS Rds up from Cliffdell if you want to top off your fuel tank at the gas station.
As you can see, the whole route covers a fairly extensive swath of Washington state. It's tough to fit it all on a single map. And the one above shows approximations of where the trails and routes are. To go from Manastash Campground to Cle Elum is very confusing for me.... lots of different gravel FS roads. Only done it once with a guide and I got so turned around I couldn't figure out which way we were going other than "down hill" and (roughly) north-ish.
In the past some of my Jeep club members and I did a Naches - Manastash - Liberty Jeep run. Spent about 2 nights and 3 days on the trail. First day was crossing the Naches. Then we set up camp at Tripod Flat and spent some time wheel'n Manastash Ridge Trail. The second night we had made out way down into Cle Elum, grabbed a good burger at the burger joint on the east end of town, and headed up Hwy 97 to set up camp in Liberty. Spent the night wheel'n Liberty's trails and headed out the next day late afternoon for home heading back on I-90.
EDIT: Update July 25th, 2011
Due to massive flooding that wiped out several roads, Manastash Campground, Manastash Road, and Taneum Road and basically all access between I-90 and the Manastash trail system has been closed. So the above route is basically undoable.
Access to the Manastash trails is still possible via Hwy 410 and Naches Trail.
Sorry for the bad news. For more info I posted here.