Line Parent: "Proposal Peak" (the saddle between those 2 peaks is at 13,180 feet).
Class: List of John gives it 3, I thought is was easier.
Drainage Basin: Colorado
From the historic town of Silverton drive to Eureka. This section of the road is nice and passable for any vehicles, dirt, but flat.The distance from Silverton to Eureka is about 8 miles. There is not much in Eureka, campground and Eureka lodge higher up and below the road.
4WD road from Eureka - you do need high clearance 4WD vehicles above Eureka. The main road goes to Animas Forks and high mountain passes: Engineer and Cinnamon. The area is very popular with ATVs and jeeps in the summer. The road for Emery accessing Emery Peak (also Proposal and Hanson Peak) turns off to the left about 1/2 mile above Eureka and goes through switchbacks and ascends through forest. It goes to a drained Emma Lake (the whole lake drained into mines). As mentioned below, I was not able to drive very high since there was avalanche debris blocking the road.
There are no fees to drive 4 WD roads, park and hike.
Summer is obviously the easiest time, early fall would be great too. Winter means a longer access (the road is usually snow plowed to Eureka) and high avalanche danger. Spring in stable conditions may be good as well and approach on skis. McCarty Basin looks like a nice place for skiing, but always check avalanche conditions!
If snow free, McCarty Basin would be a great place to backpack. There are many developed camping areas in Silverton area. Eureka is the closest one. Click here for more information.