Regional overview

Goat Rocks Wilderness occupies the Cascade crest between Mount Rainier and Mount Adams in southern Washington — a high, fragile, heavily snow-influenced range that is not a volcano so much as the ribs of one, an eroded stratovolcano whose glacial cirques and pumice ridges now carry some of the finest alpine walking in the Pacific Northwest. The wilderness spans the Gifford Pinchot National Forest on the west and the Okanogan-Wenatchee National Forest on the east, with Old Snowy Mountain (2,417 m) as its most walked summit, Gilbert Peak (2,500 m) as its high point, and the Pacific Crest Trail threading the crest between them.

The essential day-hike character here is alpine rather than purely forested: pumice ridges, high meadows, lake basins, remnants of glaciers, and a celebrated PCT crest section. Several classic destinations that are ordinarily backpacking objectives make sense as long, strenuous day-hikes for very fit parties in stable summer conditions. Because the season is short and the terrain is fragile, the Manti-La Sal-equivalent rules on the Gifford Pinchot side include no campfires wilderness-wide during summer restrictions, no camping within 100 ft of the PCT or lakes, no camping or fires in Snowgrass Flats or the Shoe Lake basin, and closure of the Yakama Reservation to the general public except for the PCT corridor. Wilderness permits are required and are free / self-issued at trailheads; some trailheads also require a Northwest Forest Pass or day-use fee.

Snow is the planning constraint. USFS describes Goat Rocks as a July–October hiking area, with high-country snow typically lasting into late July or early August. Check snow, road, and fire conditions close to travel. One current advisory to verify by phone before travel: the USFS Trail #96 (Snowgrass) page carried an unresolved access warning during compilation reading “No hiker Access after June 9th until further notice.” Every other source — trailhead pages, forest alerts, current-year trip reports — contradicts it, but the anomaly has not been formally resolved. Ring the Cowlitz Valley Ranger District (360-497-1100) before relying on that trailhead.

See also: Stevens Pass · Snoqualmie Pass.

Summary table

# Hike Country Route type Distance Gain Max elevation Difficulty
1 Snowgrass Flat USA Out-and-back 13.2 km 488 m 1,768 m Moderate-hard
2 Snowgrass – Cispus Basin – Cispus Pass / Nannie Ridge traverse USA Long traverse / loop 31.5 km 914 m 1,951 m Hard
3 Old Snowy Mountain and Elk Pass USA Out-and-back with summit spur 27.4 km 945 m 2,377 m Hard
4 Nannie Ridge to Sheep Lake USA Out-and-back 15.0 km 627 m 1,781 m Moderate-hard
5 Packwood Lake USA Out-and-back 16.1 km 366 m 975 m Moderate

1. Snowgrass Flat

Snapshot

CountryUSA (Washington, Gifford Pinchot National Forest)
Sub-regionGoat Rocks Wilderness — Snowgrass / Berry Patch access, west side
StartSnowgrass Hikers Trailhead / Berry Patch area off FR 2150
FinishSnowgrass Flat, returning the same way
Route typeOut-and-back meadow hike; optional loop extensions
Distance13.2 km / 8.2 mi; WTA
Elevation gain488 m / 1,600 ft; WTA
Elevation loss~488 m on return
Maximum elevation1,768 m / 5,800 ft; WTA
Estimated time4 hours 30 minutes to 6 hours 30 minutes; WTA / calculated
DifficultyModerate-hard
Best seasonMid to late summer into autumn, once high-country snow has cleared
Public transportNo public transport verified; private vehicle required
Verification statusRoute stats, itinerary, trailhead, pass/permit requirement and official trail identity verified via WTA and USFS. Trail #96 access warning unresolved — see hazards

Itinerary

Follow Snowgrass Trail #96 from the Snowgrass / Berry Patch trailhead area, cross Goat Creek in the second mile, and climb gradually through old forest into the lower Snowgrass Flat area at the Lily Basin Trail junction near 4.1 mi. Strong parties can extend toward the PCT, Bypass Trail #97, Goat Lake, or Goat Ridge; this entry treats Snowgrass Flat itself as the core day objective.

Why it is essential

The main west-side gateway to the alpine Goat Rocks — a compact tour of old forest, wildflower meadows, PCT access, and views toward the broken volcanic crest.

Equipment

  • Boots or sturdy trail shoes
  • Trekking poles
  • Navigation, sun and insect protection
  • Layered clothing
  • Water treatment
  • Headlamp
  • Traction if snow remains

Hazards and notes

  • Lingering snow and wet meadows.
  • Creek crossings; storms on the crest.
  • Heavy use and campsite impacts near Snowgrass Flat and Goat Lake — camping/campfires prohibited in Snowgrass Flats.
  • Verify the current USFS Trail #96 access warning before relying on this trailhead.

GPX / route file

Source URL Format Notes
WTA — Snowgrass wta.org Route database and map Route geometry / reuse terms unresolved
USFS — Trail #96 Snowgrass fs.usda.gov Official trail page Route description; no GPX
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

2. Snowgrass – Cispus Basin – Cispus Pass / Nannie Ridge traverse

Snapshot

CountryUSA (Washington, Gifford Pinchot National Forest)
Sub-regionGoat Rocks Wilderness — Cispus Basin, PCT crest and Nannie Ridge
StartSnowgrass / Berry Patch trailhead off FR 2150
FinishNormally Walupt Lake with a shuttle, or Snowgrass / Berry Patch for rough return variations
Route typeLong alpine traverse / loop variation
Distance31.5 km / 19.6 mi; WTA long loop / traverse
Elevation gain914 m / 3,000 ft; WTA
Elevation lossNot separately sourced; likely similar or greater depending on finish
Maximum elevation1,951 m / 6,400 ft; WTA
Estimated time9 to 12 hours; WTA / calculated
DifficultyHard — long day for fit, well-equipped hikers only
Best seasonWhen the PCT crest and Cispus Pass are snow-free
Public transportNo public transport verified; shuttle or road-return planning required
Verification statusLong-route stats and route sequence verified via WTA; wilderness/trail context via USFS. Trail #96 access warning unresolved
Ives Peak and the Cispus River basin in Goat Rocks Wilderness
Ives Peak above the Cispus River basin — the country the PCT crosses on the traverse from Snowgrass to Cispus Pass. Photo: U.S. Forest Service, Pacific Northwest Region, via Wikimedia Commons (public domain).

Itinerary

Start on Snowgrass Trail #96, cross Goat Creek, and reach Snowgrass Flats. Use Bypass Trail #97 to join the Pacific Crest Trail. Follow the PCT east and south into Cispus Basin, passing meadows and a waterfall before climbing to Cispus Pass. WTA’s long route continues toward the Nannie Ridge / Sheep Lake junction and descends toward Walupt Lake. Return-to-car variants require shuttle planning or the rough road/trail walking that WTA flags as less straightforward.

Why it is essential

The finest one-day sampler of the Goat Rocks high country for very fit hikers: Snowgrass meadows, the PCT, Cispus Basin, Cispus Pass, Sheep Lake country, and the Walupt side of the wilderness.

Equipment

  • Early start
  • Navigation and headlamp
  • Extra layers, rain/wind shell
  • Trekking poles
  • Water treatment; 3+ L capacity
  • Sun protection
  • Traction if snow remains
  • Full-day food and emergency margin

Hazards and notes

  • Long mileage, remote terrain, limited bailouts.
  • Lingering snow may obscure junctions and make slopes hazardous.
  • Creek crossings and fragile meadows — stay on tread.
  • Yakama Reservation boundary borders the PCT corridor; stay on the trail.
  • Trail #96 access warning unresolved — verify by phone.

GPX / route file

Source URL Format Notes
WTA — Cispus Basin / Cispus Pass wta.org Route database and map Route geometry / reuse terms unresolved
USFS — Trail #96 Snowgrass fs.usda.gov Official trail page Route description; no GPX
USFS — Trail #97 Bypass fs.usda.gov Official trail page PCT connector
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

3. Old Snowy Mountain and Elk Pass

Snapshot

CountryUSA (Washington, Gifford Pinchot National Forest)
Sub-regionGoat Rocks crest — Pacific Crest Trail, Old Snowy Mountain
StartSnowgrass / Berry Patch trailhead off FR 2150
FinishOld Snowy summit and/or Elk Pass, returning the same way
Route typeLong out-and-back with summit spur and PCT ridge section
Distance27.4 km / 17.0 mi round trip; WTA
Elevation gain945 m / 3,100 ft; WTA (understated in practice)
Elevation lossMatches gain; the crest undulates and Elk Pass drops back to ~2,042 m
Maximum elevation2,377 m / 7,800 ft on the PCT; 2,417 m / 7,930 ft at Old Snowy summit (USFS)
Estimated time8 to 11 hours; WTA / calculated
DifficultyHard — exposed, high and weather-sensitive
Best seasonLate summer to early autumn when the crest is dry
Public transportNo public transport verified
Verification statusRoute stats, high point, hazards and general route sequence verified via WTA; wilderness rules and season via USFS. Trail #96 access warning unresolved
Aerial view of the main Goat Rocks ridge including Old Snowy Mountain, with Mount Rainier in the distance
Aerial of the main Goat Rocks ridge with Old Snowy Mountain in front and Mount Rainier beyond — the PCT threads the crest below the summit. Photo: Tedder, via Wikimedia Commons (CC BY-SA 4.0).

Itinerary

Use Snowgrass Trail #96 to Snowgrass Flats, continue to the PCT, then climb toward Old Snowy Mountain. The summit finish is a short off-trail or use-path scramble with loose rock and some hand use. The continuation north toward Elk Pass follows an exposed PCT high route on the Goat Rocks crest — walked as the celebrated “Knife’s Edge” section. Parties can pick Old Snowy, Elk Pass or both according to conditions.

Why it is essential

Old Snowy is the accessible classic summit of the Goat Rocks, and the PCT near Elk Pass is one of Washington’s most famous high alpine trail segments — Rainier at one end of the sky, Adams at the other.

Equipment

  • Sturdy footwear; helmet optional for loose-rock summit parties
  • Trekking poles
  • Navigation, wind/rain layers, sun protection
  • Headlamp
  • Water treatment (crest is dry)
  • Traction / ice axe if snow remains — the Forest Service is explicit that ice axes are “always recommended” here

Hazards and notes

  • Loose rock on Old Snowy and rockfall from parties above.
  • Exposed PCT tread near the crest; steep snowfields in some years.
  • Storms on a fully exposed rock crest; no shelter for hours in either direction.
  • Limited water high on the route.
  • Trail #96 access warning unresolved — verify by phone.

GPX / route file

Source URL Format Notes
WTA — Old Snowy Mountain / Elk Pass wta.org Route database and map Route geometry / reuse terms unresolved
USFS — Trail #96 Snowgrass fs.usda.gov Official trail page Route description; no GPX
USFS FSGeodata — National Forest System Trails data.fs.usda.gov Shapefile / geodatabase Contains SNOWGRASS and PCNST geometry; US federal government work
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

4. Nannie Ridge to Sheep Lake

Snapshot

CountryUSA (Washington, Gifford Pinchot National Forest)
Sub-regionGoat Rocks Wilderness — Walupt Lake / Nannie Ridge, south side
StartNannie Ridge Trailhead near Walupt Lake Campground
FinishSheep Lake, returning the same way
Route typeOut-and-back ridge and lake hike
Distance15.0 km / 9.3 mi round trip; WTA
Elevation gain627 m / 2,056 ft; WTA
Elevation loss~627 m on return; front-loaded ascent
Maximum elevation1,781 m / 5,842 ft on the ridge crest below Nannie Peak
Estimated time5 to 7 hours; WTA / calculated
DifficultyModerate to hard — steep front-loaded climb, gentler ridge beyond
Best seasonAfter snowmelt through autumn; early season snow may hold on shaded aspects
Public transportNo public transport verified; access via US 12, FR 21, FR 2160 to Walupt Lake Campground
Verification statusRoute stats, access, trailhead and route description verified via WTA; Walupt / Nannie Ridge access context via USFS
Walupt Lake seen from the south-west valley wall, with forested Nannie Ridge rising to the left
Walupt Lake and Nannie Ridge — the start of the steep climb to Sheep Lake. Photo: Ned Putnam, via Wikimedia Commons (CC BY-SA 4.0).

Itinerary

Start near the eastern end of Walupt Lake Campground and climb Nannie Ridge Trail #98 through forest to the ridge crest. Continue along the ridge with views south to Mount Adams and north to the Goat Rocks, descending / contouring to Sheep Lake, the normal day-hike turnaround. A longer PCT-loop variant returns via the Walupt Lake Trail.

Why it is essential

The best compact Walupt-side day-hike: a strong climb, broad views, an alpine lake, and access to the southern Goat Rocks without the Snowgrass crowds — and no trailhead fee.

Equipment

  • Sturdy footwear
  • Trekking poles
  • Navigation
  • Water treatment; 3 L capacity (the ridge is dry)
  • Sun and insect protection
  • Layers, headlamp

Hazards and notes

  • Steady front-loaded climb; limited water on the ridge.
  • Storms and snow patches early in the season.
  • Fragile lake and meadow areas near Sheep Lake — stay on tread.
  • Yakama Reservation borders the PCT north of Sheep Lake; stay on the trail.

GPX / route file

Source URL Format Notes
WTA — Nannie Ridge wta.org Route database and map Route geometry / reuse terms unresolved
USFS — Goat Rocks Wilderness fs.usda.gov Official wilderness page Confirms Walupt access to Nannie Ridge #98
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

5. Packwood Lake

Snapshot

CountryUSA (Washington, Gifford Pinchot National Forest)
Sub-regionPackwood Lake / Goat Rocks Wilderness — north-west approach from Packwood
StartPackwood Lake Trailhead at the end of FR 1260
FinishPackwood Lake shoreline, returning the same way
Route typeOut-and-back lake hike on Trail #78
Distance16.1 km / 10.0 mi round trip; WTA
Elevation gain366 m / 1,200 ft; WTA
Elevation lossMatches gain on return; the trail actually descends slightly to reach the lake
Maximum elevation975 m / 3,200 ft; WTA
Estimated time4 hours 30 minutes to 6 hours 30 minutes; WTA / calculated
DifficultyModerate
Best seasonUsually opens earlier than high Goat Rocks routes; snow, blowdown and road issues can still affect access
Public transportNo public transport verified; access via US 12 to Packwood and FR 1260
Verification statusRoute stats and access verified via WTA; official trail identity, lake history, fee / pass / wilderness permit and motor restrictions verified via USFS
Packwood Lake seen from its north-east shore, with wooded Agnes Island offshore and Johnson Peak rising behind
Packwood Lake from the north-east shore — Agnes Island offshore, Johnson Peak beyond. The lake was formed when a landslide off Snyder Mountain dammed Lake Creek about 1,200 years ago. Photo: L8rpeace, via Wikimedia Commons (CC BY-SA 4.0).

Itinerary

Follow Packwood Lake Trail #78 from the road-end trailhead through old-growth forest, enter Goat Rocks Wilderness, and reach Packwood Lake near the historic guard station / ranger-station area. A bridge over Lake Creek gives access to the north-shore camping area, but day hikers can turn around at the lake outlet or shore.

Why it is essential

The lower-elevation lake classic of Goat Rocks, pairing old-growth forest, a large natural lake, Indigenous and early Forest Service history, and a much longer season than the high crest routes.

Equipment

  • Trail shoes or boots
  • Rain layer
  • Water treatment
  • Insect protection
  • Navigation, headlamp

Hazards and notes

  • Wet forest tread, blowdown, remote lake-shore travel.
  • No potable water.
  • USFS motor restrictions at Packwood Lake — no motorised or mechanical watercraft.
  • $5 day-use fee or valid pass; free wilderness permit at trailhead.

GPX / route file

Source URL Format Notes
WTA — Packwood Lake wta.org Route database and map Route geometry / reuse terms unresolved
USFS — Trail #78 Packwood Lake fs.usda.gov Official trail page Route description; carries lake history and geology
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

Further reading