From AK-1 or the (Seward Highway) take the O'Malley Road exit, go west about 3.5 miles (towards the mountains), the road climbs up in elevation and you'll be turning, right (south) on Hillside Drive. Go one mile and then you will make a left turn (towards the mountains) on Upper Huffman Drive. The road will appear to come to an end where you turn right on to Toilsome Hill Drive the road quickly makes a hairpin turn before somewhat leveling out on to and seamlessly becomes Glen Alps Road. Almost 2 miles after turning on to Toilsome Hill Dr turn left, into the Flattop Mountain Trail parking lot.
There is a parking fee, and the ticket machine accepts credit cards.
At the NW end of a ridge in Chugach Mountains, between South Fork Campbell and Rabbit Creeks, 11 mi SE of Anchorage, Chugach Mountains.
Flattop Mountain is nice because the trailhead starts at around 2,300', a fair chunk of the climb gets knocked out by your vehicle. The summit is only 1.5 miles one-way from the parking area, with an elevation gain of 1252 feet. You gain roughly 1,000 feet in the last mile. The hike can takes around two and a half - four hours RT. For more information on the hike check out the Flattop Mountain Trail page.
Because of it's short hiking time, close location to Anchorage, and great views the trail can have a lot of traffic on it. The top of the mountain is wide flat and rocky.
Local descriptive name reported in 1963 by the Mountaineering Club of Alaska.
Naming: Flattop Mountain is a local descriptive name recorded in 1963 by the Mountaineering Club of Alaska.