Hamburg Mountain High Point is the highest mountain in New Jersey outside of the Kittatinnies, the highest trailless peak in New Jersey, and the highest mountain in the crystalline New York/New Jersey Highlands. (Schunemunk is higher, but Schunemunk is a newer formation and is made of puddingstone).
The actual summit of the high point is a rock outcropping without any view, but east of the summit there are steep slabs of exposed bedrock that offer expansive and unobstructed views of the wilderness of the Pequannock Watershed.
As usual for these mountains, there are woods roads around the Hamburg Mountain High Point, but, surprisingly, they do not seem to get much use from ATV riders. The woods roads are quite overgrown with moss, grass, and underbrush and dissolve into the woods after a few hundred feet. There are no woods roads or ATV trails near the summit or at any of the likely launch points, making a hike up to this peak more of a true bushwhack than many other high peaks.
Despite the wilderness nature of the woods here, there are outposts of civilization. The crescent shaped lake north-northwest of the summit is the "Mountain Top Recreation Center" and has cabins, boating, and a swim beach. Privately-owned Lake Wildwood also has many houses on it.
Mountain Creek Ski Area (formerly Vernon Valley/Great Gorge) and Hidden Valley Ski Area are on the slopes of the Hamburg Mountains. In the early 2000s, Mountain Creek attempted to build 1600 condos and retail on the mountain top, but this plan was scrapped due to environmentalist opposition and the State stepping in with $7 million for a land purchase.
Without a lot of well-written intel on this one, we started off whacking behind the parking area by the gate until we found a woods road, and followed that around the south side of the lake. Had to detour a bit to avoid a swamp, but once on the summit, we decided to walk out on the woods road before hitting the private road. It wasn't well-posted, so by the time we realized we were off the state land, we were 2 minutes from the parking lot anyway.
Parked at end of Sandy Pond Rd. Wandered to summit following Wildwood Lake, compass. Found several woods roads ..... mostly on the descent:) Most of the climb was quite gradual rolling up and down until the final ascent to the summit which was steeper. Found cairn at summit described by other hikers. Nice warm day, what a contrast to prior Saturday when we did Taurus and parts of Breakneck Ridge with AMC.