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Copyright © Dan A. Nelson/The Mountaineers Books Pratt Lake Basin
The path to Pratt Lake was once a braided super highway, at times more than 10 feet wide. Hardly the stuff of wilderness. But Washington Trails Association (WTA) volunteers stepped in and rebuilt the trail. Not only did they rebuild the tread to channel all hikers onto the proper path, they decommissioned all the unauthorized secondary trails, creating a new single track worthy of a pristine wild area. Hikers can now stroll easily up this picturesque trail to the pretty Pratt Lake basin.
The first mile of trail is busy. You're sharing this section with crowds headed for Granite Mountain. But don't worry: at the 1-mile mark most of your fellow hikers will peel off to the right as you push on straight ahead to Pratt Lake. At around 3 miles out you'll find a fine viewpoint at 3400 feet. Pause to take pictures of the Snoqualmie Valley and the peaks above the Ollalie, Talapus, and Pratt Lake basins. Just beyond you'll enter the Alpine Lakes Wilderness, and then you'll encounter a side trail at 3.8 miles leading down to forest-rimmed Talapus Lake. A scant 0.25 mile past this junction you'll reach a low saddle (elev. 4100 feet) separating the higher Pratt Lake basin from the Talapus and Olallie basins. This is a great place to stop for a rest and, in late August (most years), to harvest the abundant huckleberries. Turn around here unless you really need to reach the lake.
Driving Directions:
From Seattle drive east on I-90 to exit 47 (Asahel Curtis/Denny Creek). Turn north over the freeway, turn left at the T, and drive to the nearby Pratt Lake-Granite Mountain parking area. Recent Trip Reports
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Pratt Lake Basin
— May 27, 2012
— pbebbs3
Day hike
Issues:
Washouts | Snow on trail
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I had been up to granite mountain many times in the past. However my friends and I decided to go lef...
I had been up to granite mountain many times in the past. However my friends and I decided to go left and find Pratt Lake. Due to the snow coverage at the top of the basin, we lost track of the trail to the lake and ended up looking up at Granite Mountain.
As stated in previous trip reports for this location, a huge avalanche field took out a large portion of the trail towards the beginning. The detour has been flagged and goes temporarily up strenuous terrain. The signs up spring snow melt shows going up with bug currents in the streams. At the fork for Talapus and Olallie lakes, we began to lose track of the trail and ended up following other shoe prints and ended up at the foot of Grainite. I would wait to try this trail until late June or July. Still lots of snow. Day hike
Issues:
Snow on trail
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The Pratt Lake trail from the Granite Mountain trailhead is one of my favorites. It is a gentle, st...
The Pratt Lake trail from the Granite Mountain trailhead is one of my favorites. It is a gentle, steady incline that skirts through the woods, crosses cascading creeks, and links up to the Talapus-Ollalie connector trail. However, a huge avalanche down Granite Mountain this winter has completely wiped out the switchbacks that reach out into the main avalanche chute. A rough & ready boot track detours around the first wiped out switchback and connects up with the trail higher up the mountain. From there the trail is clean and clear to the junction with the Pratt Lake trail.
Many people were going up Granite Mountain and I don't know how far they got but friends reported from an attempt on May 12 that the snow was slushy awful up higher and they turned around. Today we turned left at the junction and enjoyed a sweet effortless hike up to the puncheons. That's where the snow begins. The puncheons are difficult right now because of remaining narrow snow crowns on the wood, yet going around them risks punching through into a snow cave undercut by the running water. It's all salt & pepper snow at the junction with the Talapus-Ollalie connector. We took the connector to the Ollalie stream crossing but judged it too dangerous to cross. The snow was banked straight up on either side about 5 feet and the water was running high over the log. We took the other trail up around Ollalie Lake. There are tracks to follow but it is wise to mark your way with sticks as well because the deep snow all looks the same under the trees. We got up to the northeast corner of the Ollalie basin where we had to stop because of a deep ravine. The snow there has been cut through straight down 12 feet on each side by running water. This is the case every winter. This would be a good place for a bridge. All in all it was a good hike and lots of people were out on the trails - about half of them totally unequipped for conditions. It's all snow from Day hike
Issues:
Snow on trail | Avalanche danger
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Granite Mt --> West Granite Mt --> Olallie Lake loop
Avalanche danger was considerable this weekend...
Granite Mt --> West Granite Mt --> Olallie Lake loop
Avalanche danger was considerable this weekend. Saturday was the 2nd day of the first spell of solid hot weather, the snowpack was not really consolidated yet, and NWAC had a special bulletin out Friday that caused me to change plans. I did see some recent slides. http://www.nwac.us/ Might be worse tomorrow (Mon 5/14/12). Upon my return, I encountered 3 people, perhaps new to the area, who had summited and presumably descended late in the afternoon heat, apparently oblivious to this situation at this notorious avalanche site. It's always a good idea to check http://www.nwac.us/, even this late in the season. I did use snowshoes after 3 PM (largely for the dog's convenience, not entirely necessary). A long ice ax would've been much better than the silly hiking pole. Note: this trip did NOT actually include Trail #1016; it is a variant that joins that WINTER route. 1016 as shown on the map is NOT a route you want to take in spring, as it crosses the notorious avalanche chute and dangerous slopes on the south side. The winter route on 1016 (I believe) follows the trail up to about 3600, then leaves the trail heading NW to gain the safe SW ridge. I wonder about that section between the trail and the ridge. The way I do this trip is: Pass the Tr #1016 junction and continue about 1/4 mi. to almost 2800' to the major N-S ravine (if you encounter switchbacks, you've gone too far). There are actually two closely-spaced parallel streams here, the first is smaller; cross this and then leave the trail right before it crosses the 2nd, main stream, about 2800'. Ascend forest on the E bank of the main stream, heading North to about 3600', where you start angling NE. The brush is thin, at least when there's this much snow. About 3900, you reach a basin at about treeline. From here, go straight NE up the SW ridge of Granite. There are actually two roughly parallel SW ridges several hundred meters apart; you can take either. The easterly one is the bare rocky ridge you see from I-90, and if you head for it, you'll join the standard winter route almost immediately; you'll have to cross below an open slope to get there, but you got a very early start, so you'll be ascending this early in the morning when it's still frozen, right? In hot weather like this weekend, I'd say the main avvy danger is during the descent, if you loiter on the summit until that SW slope starts to bake. I had decided that the safest descent would be on the westernmost of these two parallel ridges (not the rocky one that you see from I-90). This would avoid crossing from the eastern to the western ridge below the open slope above. But I have never actually done that descent route. I foolishly got a late start and didn't reach the summit until 12:20, but it was still frozen on that SW ridge. I had the summit to myself -- I guess the NWAC bulletin had made a lot of people avoid this popular place -- and lounged until 2:30, not a good idea in this kind of weather. The SW slopes were getting wet and loaded, several inches of heavy wet snow sliding easily on the crust underneath. But I didn't descend the SW ridge at all. I descended the NW ridge to West Granite, threading between cornices on the NE and avvy slopes on the SW (photo). Ascending the SE ridge of West Granite is mostly in trees. On snowshoes by then. Descending the NW ridge of West Granite was much the same as the NW ridge of Granite: cornices on the right, avvy slopes on the left. It eventually curves towards the west, and gets steeper. I'd taken a hiking pole instead of my 80cm ice ax, and that was really stupid. It would have been easy to start a slide at the top of the steep S slope; several inches of heavy mush on a smooth crust. I was hanging onto trees. From the col N of Olallie Lake, you head S to pick up Tr #1007 on its east side, which is still in heavy snow. The first tracks I picked up were not at all obvious. Picking up the trail might be tricky if you don't know the area. I think the snow ended about 3200'. My point is: this was a fairly casual trip with avalanche and cornice danger nearby during the warm afternoon descent. You could get into trouble here. About this time last year, I started and briefly rode a small slide here on the S side at about 4000' in similar warm afternoon conditions. Beckey mentions the avalanche hazard in this S chute. Don't forget the famous guy who got buried in a slide here a couple years back and called for his own rescue on a cell phone (not making this up). Did I mention http://www.nwac.us/? Day hike
Issues:
Mud/Rockslide | Snow on trail
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I was only able to make it up about 3 miles due to deep post-holing. There were some beautiful wate...
I was only able to make it up about 3 miles due to deep post-holing. There were some beautiful waterfalls along the way, and I do love being out in the woods, so I don't feel that the trip was a loss. I would definitely recommend yaktrax or microspikes, as the trail is covered in snow after the first half mile. One tip - there is an avalanche not far from the beginning of the trail. To get back to the trail just stick to the forest and climb up. It's not far.
Pratt Lake Basin
— Apr 08, 2012
— Mangy Marmot
Day hike
Issues:
Snow on trail
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I headed out early this morning from the Granite Mountian trailhead headed for Pratt Mountain. The t...
I headed out early this morning from the Granite Mountian trailhead headed for Pratt Mountain. The trail started out mostly dry, but the snow picked up quickly. By the time I reached the fork where the trail to Pratt Lake splits from the trail to Granite Mountain, the trail surface was compact snow. The only navigation challenge on this part is the avalanche debris. When you reach the avalanche, head up the hill next to the debris until you find the trail again. Do not cross the avalanche. The trail switches back under the debris and comes out on the same side. Thanks to those who posted this information earlier.
After the first trail junction the trail is 99.9% compact snow. The only exceptions are a few stream crossings. Plenty of people have been up the trail so navigation is easy until the turn off to Olallie Lake. Microspikes worked well, but they are not necessary for this section. Everyone seems to have taken the turn off to Olallie. I followed all the other tracks and completely misses the trail leading to Pratt. I didn't figure it out until I was practically at the lake. Here I switched my mirospikes for snow shoes and headed cross country trying to find the trail to Pratt. I didn't find the trail but it's easy enough to go in the general direction and end up close. There was one stream crossing that was treacherous because the stream is in a deep gully with steep sides. You have to work your way down to a snow bridge and the back up the other side. It may be better to stick closer to the lake where it looks like the gully isn't so deep. By the time I got around Olallie lake, it became obvious that I wouldn't have time to get to Pratt and make it back to town in time for hunting Easter eggs. Instead, I went straight up hill and got to the top of the ridge that runs between Pratt and West Granite. I followed the ridge to just before the steep climb to West Granite. There is a nice flat area with great views. To the South you see Olallie lake down below you, Mt. Gardner on the other side of I-90, and Mt. Rainier way off in the distance. To the West you see Pratt, Bandera, and several other peaks. To the North you see the Pratt River Valley, Kaleetan Peak, and the mountains around Alpental. Today the ridge was very windy. I ate a snack, enjoyed the views for a while, and headed back to the car. Unfortunately my camera froze up early in the trip so I have no pictures. I brought some microspikes which were helpful, but not required on the trail portion of the hike. Snow shoes are needed off trail. I didn't even take out the ice axe. It's only purpose was to snag tree branches here and there. |
![]() Pratt Lake. Photo by Captain Crush.
2010, 2011
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