Peak 8852 (Castletop Peak)

Elevation: 8,852 ft
Prominence: 392

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This peak is not in the book. The first article is by Matt Durrant. The second contribution is by Livingston Douglas. Both submissions will aid in your exploration of this interesting peak. USGS Paris Peak. Updated October 2018

This peak is located southwest of Paris Peak and can be climbed along with White Face Peak which sits just to to its west. This very interesting peak is what separates the North Fork Bloomington drainage from Bloomington Canyon. What it lacks in elevation gain, it makes up for in unique features. Its summit is part of a long, east-west trending wall of rock towers. When approached from the east, the mountain is a pretty straightforward Class 2 climb. From the west, however, it is a solid Class 3 climb with serious deadfall in the forest below.

There are some areas that could get into the Class 4 area but they can be avoided pretty easily. The true summit is difficult to pinpoint because the towers on the wall are nearly identical in height. I believe the true summit lies close to the eastern end of the wall. There is a single tree growing on it and a massive crack directly below it to the east. This amazing mountain is a great scramble and it’s worth the trip up just to check out the neat rock formations that make the “castle” on the top of “Castletop.” Again, there was no sign of previous visitation when we were there and no record online of anyone climbing it, but I find it hard to believe that no one has ever set foot on the peak before.

Castletop Peak. Matt Durrant Photo

Castletop Peak. Matt Durrant Photo

Castletop Peak. Matt Durrant Photo

Castletop Peak. Matt Durrant Photo

Castletop Peak's summit ridge. Matt Durrant Photo

The summit ridge of Castletop Peak. Matt Durrant Photo

Castletop Peak. Matt Durrant Photo

Castletop Peak. Matt Durrant Photo

Map of Peaks in the northern reaches of the Bear River Range. Map by Matt Durrant

Peaks in the northern reaches of the Bear River Range. Matt Durrant Map

From US-89 in Bloomington, ID, turn west onto the signed Bloomington Canyon Road and follow this road for approximately 7.5 miles past the National Forest Boundary and park in the developed Paris Peak trailhead parking lot. The Middle Fork Bloomington Canyon is the drainage to the north. This drainage gives you access to all of the peaks in this area including Paris, North Paris, Whiteface, and Castletop. For Paris and North Paris, simply follow the ATV trail to the meadow between the two peaks and then work your way to the summit of either peak.

Whiteface and Castletop can easily be combined with Paris and North Paris for an amazing traverse by following the ridge that leads west from North Paris. Continue on the same ridge as it circles back to the summit on Castletop and then back down to the trailhead. For an ascent of Whiteface only, work your way up the Middle Fork Bloomington Canyon, all the way to just before a road junction where Middle Fork Road FS-426 turns right/north to climb to a saddle and then ascend the peak from the south. For Castletop, simply cross the bottom of the canyon and work your way up the open ridge to the northwest of the trailhead.

2018 Updates by Livingston Douglas

Southeast Ridge, Class 3


Drive up Bloomington Canyon Road/FSR-409 from US-89 at the south end of Bloomington, ID. At 7.9 miles, you reach the road junction with Middle Fork Road/FSR-426. Either park here (7,340 feet) or drive a mile up the road (which has a large, watery mudhole about ½ mile up the road) to reach the road departure point.

The Climb

The south sides of Peak 8852 and Peak 8963 are a steep, ugly mix of boulders and trees. This rough, if not impossible, bushwhack is readily visible from the Middle Fork Road. However, Peak 8852 does have one weakness on its south side: the southeast ridge. From the base of Middle Fork Road (at its junction with Bloomington Canyon Road), hike west up Middle Fork Road for just under a mile to reach a clearing below the west side of the southeast ridge. This clearing provides the easiest access to the ridge. Leave the road here at 7,500 feet.

Bushwhack northeast through desert scrub and thick aspens to reach the southeast ridge. Getting up onto the forested ridge requires a Class 3 maneuver to pull yourself up onto the ridge crest using aspen limbs. You should reach the ridge in just under 15 minutes and surmount the ridge crest at 7,825 feet. The right/east side of the ridge crest is open scrub, with the early morning sun to warm you. Follow the southeast ridge northward on relatively easy desert scrub. Stay close to the ridge crest, as the veg farther down is very thick. No game trails or cattle trails to help. Wild animals and livestock are smart enough to stay away from this area. At about 8,500 feet, the ridge turns left/west and becomes a mix of forest, rocky outcrops/boulders, and desert scrub.

The summit area is a row of large rock towers/blocks with trees mixed in to make it a difficult area to traverse. I can confirm that the high point is at the eastern end of this blocky, narrow ridge crest. The highest boulder/tower is just on the west side of a sturdy pine tree that splits the tower (as Matt Durrant points out). To stand on that high point, you must make a Class 3 maneuver (holding the angled tree trunk with your left hand/arm) across the exposed gap in the rock to stand on top of that massive boulder/tower. Views from the summit are negligible due to the surrounding forest, but you DO have a view directly WSW of the line of rocky ridge blocks/towers. It APPEARS that you are on the high point, but you can’t be sure. The other towers are of similar height but, as the USGS map suggests, the high point IS at the eastern end and you ARE standing on it. Just to be sure, I measured the other “high” towers and none of them were quite as high as the eastern one.

There was no cairn or register atop this peak. There were no loose rocks available to build a cairn; else, I would have done so. Should you enjoy misery, continue by reading the west ridge descent route which was the next leg of my adventure. If you plan to bag Peak 8963 as well, that route is the easiest way to get there from here. Like the summit cap of nearby Paris Peak, the mountain tops in this area are a wicked combination of large boulders (or blocks/towers) and trees, with a dollop of veg mixed in. That includes Paris Peak, Peak 8852/Castletop Peak, and Peak 8963/White Face Peak. Nearby Peak 9270/North Paris Peak and Peak 8974 are NOT of the same genre and are much easier mountains to climb.

West Ridge, Class 3


Same as for the southeast ridge

The Descent

The west ridge of Peak 8852 is only a half-mile in length and only requires a 400 foot descent. But it is a brutal bushwhack across and then down a combination of large boulders (towers/blocks on the 0.2-mile summit crest), trees, and veg. You will have to work to keep this at a Class 3 difficulty, as it’s quite easy to make it Class 4 or worse. Stay to the right/north of the ridge crest itself, which is at least Class 4. Thanks to the thick forest, visibility is nil. Needless to say, there are no game trails or cattle trails to help out. Not even wild or domesticated animals are dumb enough to struggle with this sheer awfulness. As you approach the saddle at the base of the west ridge, the slope eases and the boulders disappear. At the 8,460-foot saddle, the forest ends and the terrain opens up.

Additional Resources

Mountain Range: Bear River Range

First Ascent Information:

  • Other First Ascent: Southeast Ridge
  • Year: 2018
  • Season: Summer
  • Party: Livingston Douglas

Longitude: -111.57259   Latitude: 42.19069

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