The trail actually starts at a different location: 47.291829, -121.097825 (and not at 47.2851, -121.0893). The coordinates provided by WTA will lead you to a private property. Alltrails has a better map you could double check with.
First 2 miles of the trail go on an unpaved road, so there is a lot of room to keep distance and the elevation during this time is okay. GPS might be helpful as sometimes it's not clear where to turn as the road keep forking. However, there were a few pointers built out of branches so it should be doable without any gps.
The last ~1.8 miles it becomes steeper and you walk along the ridge with amazing views of surrounding mountains and the breeze from the snowy peaks that have not yet melted.
All the way as you turn back you see the beautiful Cle Elum lake.
It is a challenging hike but worth it. Don't forget the snacks and the water!
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