Take the same way back down, and you'll be in good shape.
Point 6446 is most easily accessible from the Picture Rock Trailhead of Heil Ranch, and while on public property, lies within a County Open Space Permanent Closure area.
Back at the car, I drove back down CR 47 toward 36, but turned off at jeep road 118A. I parked here and started up the road. After maybe 15 minutes, you'll come to a flatter area with a figure eight on the left. Turn left here and find a trail leaving through the large rocks ringing the area. You'll find this is an old jeep road as well, but has ceased being used for that purpose and is now going back to single track.
Continue up on this as a trail splits and then comes back on the right. Continue straight at the trail drops into some rockier sections. You'll finally reach a saddle at around 8000 feet. You'll gain some more elevation and find yourself at a four way intersection- simply keep going straight. The trail will loose some more elevation, ending up in a saddle just below 7500 feet.
We headed back down toward the trail and took a break in the seasonally wet 'puddle' near the trail intersection.
After some water and food we headed back the way we'd come. Back at home the dogs fell asleep almost immediately, while I had some around the house errands to attend to. What a life!
Two days of Boulder County Highpoints:
Indian Lookout Mountain, 6533 feet: 4 miles round trip, 1375 foot gain. Moderate.
Point 6446: 4 miles round trip, 1081 foot gain. Moderate.
Point 7985: 2.5 miles round trip, 639 foot gain. Moderate-.
Point 7790: 7.6 miles round trip, 2498 foot gain. Moderate+.