Hi, All - so after searching the internet, asking on backpack / hiking forums and coming up basically empty, my adult son (Nick) and I did a cross-country bushwack from General's Highway into the Suwanee Grove at Sequoia NP on Friday September 22, 2017. It was about 1.2 miles each way to the northern edge of the grove, and about 750 feet elevation loss outbound, 750 feet gain back. No trails, although remnants of the ancient official trail from Halstead Meadow to the Grove were found after crossing Suwanee Creek at the halfway mark. We followed those old traces as best we could, but a good Topo map and GPS helped quite a bit.
It had just rained and snowed the day before, so the going was often slippery and unstable, especially on fallen wood and branches.
We began at about 10:10 am at the first bend in the road about 1.2 miles west of Halstead meadow, where a small pullout is available at the top of a lightly forested ridge just east of Suwanee Creek whose downhill end is at a crossing of Suwanee Creek, 0.6 miles southward and downward. We set off in a near due-south direction down this ridgetop, veering off-center as necessary to avoid excessively steep sections and the worst terrain and downfall. At this time, it must be noted that, steep or not, the going was not like a trail walk. We pushed through spacious, dense masses of spiny buckthorn, manzanita and other plants, frequently having to climb over large partially rotting logs and walking over very slick downfall branches. Even downhill, it was quite a workout.
After reaching an open granite slope near the bottom of this ridgeline, one of several along the way down, we crossed Suwanee Creek at a good spot and then proceeded a little more SWesterly, around the noses of the ridge on the west side of Suwanee Creek. It was along this section that we were able to pick up traces of the old Halstead-Suwanee-Crystal Cave Trail and use them to some advantage - but the going was not much easier, as the terrain, which had leveled out just a little, was still frequently choked with fallen logs, brush, wet downfall and shattered stumps.
In this area, the map and GPS helped quite a lot, because the forest had become thicker and line of sight was very limited. After a total of perhaps 80-minutes (about 1 mile per hour), we arrived at a spot where we could see the rounded tops of mature sequoia trees through the upper forest crown. We made our way steeply downhill,. and at 1.25 miles or so arrived at the first sequoias on the northerly edge of the Grove.
On a map, the Grove is shaped like a U that opens upslope and toward the west, wrapping around a granite knoll that separates the N and S halves of the grove. Along both arms of the U, the map shows small streams that intersect near the base of the grove before flowing southward into Suwanee Creek.. The Grove overall is about 80 - 100 acres, but seeing the whole thing would require an extra loop walk of perhaps about 3 miles through fairly steep and overgrown terrain.
The trees in this area, right above the small creek that runs through the northern half, were medium aged and perhaps 5-15 feet across. One large fallen log was present. We explored maybe 5-10 acres of this area in a 20-minute period, where numerous attractive sequoias were, and decided that the terrain was too steep and the brush too unforgiving for a more thorough exploration that day - plus, I had just acquired shin splints, which made my own workout a bit more painful than usual. My sense is that if a fire went through this area today, even after fire suppression burns in the 1980s, it would be a difficult fire to put out and could damage many sequoias. It also gave us a keen appreciation for the hard work the fire fighters must endure to fight fires in wilderness zones.
So, after an only partially satisfying adventure, we turned around and did our best to retrace our steps back northward toward the Highway and our car, adjusting the route as necessary to ease the steep and obstacle-laden climb. The walk out took maybe 1:45 minutes.
Along the way in both directions, we saw no major wild life, but we did see many, many piles of bear scat, and at least one scat that certainly appeared to be from a cougar. These added to the ambiance in a positive way.
I would love to be able to explore the Grove itself much more, but the effort required to get in there and the condition of the forest floor in the Grove itself simply screams TRAIL NEEDED. I do wish the NPS could rework the trail back out there again, as this backcountry Grove has values that are probably at least on par with the delightful and accessible Muir Grove, and would please many hikers looking for alternatives to the heavily used Giant Forest.
It was worth doing once.