Nason Ridge Tr1583 can be ridden as a large loop with FR67 and Snowy Creek Tr1531, but the 16.7mi trail becomes progressively steeper in the last 5mi, so the usual ride is an OAB to Merritt Lake Tr1588.
Round Mountain, Merritt Lake and Rock Mountain define the three progressively intense ride options.
The most common and easily accessible ride is the 12.5mi (3400', 11% grade) relentlessly ascending OAB from the Nason Creek campground to Round Mountain.
This can be extended by riding 3mi to Alpine Lookout, beyond which the trail descends to the Merritt Lake Tr1588 intersection.
The best ride option is to shuttle from FR6910 to Merritt Lake Tr1588, although this 10mi (3700' ascent) ride does include a 1.4mi, 1300' (17%) Round Mountain Tr1529 ascent from FR6910 to Nason Ridge Tr1583 which many riders would have to hike-a-bike.
The 4.5mi FR6910 ascends a climbable 1850', so the Nason Creek Rest Area could be used for a 22mi CCW loop, returning 6mi downhill on SR2 from Merritt Lake Tr1588.
The Merritt Lake Tr1588 TH would also be a good option for a 15mi (5900' ascent) shuttle ride from the Nason Creek campground.
The toughest options are better suited for hiking, using Snowy Creek Tr1531 to access Nason Ridge Tr1583, or Rock Mountain Tr1587 to loop with Merritt Lake Tr1588.
Since these trails get far less use, they can become overgrown and poorly maintained, so expect some pathfinding and hike-a-bike if exploring the Rock Mountain end of Nason Ridge.
Many good camping options near Lake Wenatchee, including Glacier View, Nason Creek and White Pine.
Merritt Lake Trail 1588, Nason Ridge Trail 1583, Rock Mountain Trail 1587, Round Mountain Trail 1529, Snowy Creek Trail 1531
Glacier View Campground, Nason Creek Campground, Riverside Campground, White Pine Campground
Ranking consistently applied to all of the listed trails.