A-Basin, CO 4-6-25

EMSC

Well-known member
Not nearly as good as expected.

After a cold and snowy week that brought 18"+ to Abasin I had expected a lot of soft and fun conditions all over the mountain. Especially on a day with temps at 10F to start and only 25F at the end of the day. Instead the cold temps locked the snow up like concrete off the groomers, especially first thing in the morning. While one could generously describe things as 'chalky' it was definitely not even that good on most of the hill for the first couple hours. You could find patches of untracked snow from the storms near trees in places like the Beavers, but that was linking 2-3 turns at a time, stop link a few more, stop... to avoid the super hard surface everywhere anyone had previously skied. Very weird. After attempts on Pali, Beavers, Zuma we stuck to a few groomers which were skiing very nicely and easy to carve. But I don't go to ABasin for groomers of course.

After an early lunch to see if the sun would help at all we then attempted the big terrain. I figured at the least with a steady stream of skiers that there might form some soft snow just from the chalky getting layers scraped off and loosening the small chunky bits. Not sure which was true but the snow in North pole was much, much better once down in. On the other hand, I can't recall a normal snow year with worse entries to the various north pole chutes. 1st notch is closed, 2nd notch has about the least snow up top ever so, required down hike, little north pole is scraped literally bare at this point. with a few crazy enough to slide down the dirt and small rocks. Main North Pole entry is by far the best, but even that is a series of small turns avoiding rocks for far longer than I can recall outside of bad snow years (which this one isn't).

Anyway, like a few weeks ago, couple laps, then couple laps in Steep Gullies which was decent skiers left (wind blows it in and rock ridglines protect from sun) and occasionally icy if straying to skiers right side of the gullies.

I certainly didn't need to worry about falling asleep last night. And thank goodness the best terrain 'saved' the ski day for me. Would have been so disappointed to burn a day off my pass at the Basin if I was stuck on groomers the rest of the day, in spite of the fact they were skiing quite well.

Part of the Georgetown herd
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Lots of tracks on lots of big lines all over the Loveland pass area...
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This pic makes Pali look way softer than it actually was
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Interesting homemade ski poles. There is a ~1.5 inch spike on the bottom of the round knob (Zuma lift line)
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North Pole:
This pic somehow makes the wind look less than it was. It was roaring on the hike up. My son was not a fan, lol. Probably his first ever hikes in such windy conditions.
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I would have tried 2nd notch, but the down-hike line was far too bothersome to wait.
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Almost down far enough to just ski...
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Back to the steep gullies:
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I thought that conditions were always perfect in Colorado!
Far from it of course. But I burned 4 hours in a car to get there vs thousands too. Definitely one of the least predictable conditions days I've had at the Basin though. Usually you can tell if it should be soft or refrozen or etc...
 
Instead the cold temps locked the snow up like concrete off the groomers, especially first thing in the morning. While one could generously describe things as 'chalky' it was definitely not even that good on most of the hill for the first couple hours.
This was not unlike the difference between April 3 and 4 at Mammoth. From much experience I can confidently say the culprit was wind. When first day powder is churned but not skied enough to get packed down, it can get stiffened overnight by wind. That was my observation on Climax. Dave's Run was easier to ski because it had been skier packed more. Churned powder is generally unpleasant in the Sierra due to high water content. Second day after storm unconsolidated snow is often still fun when it's lower water content as is usually true in Colorado. That's another point convincing me about the wind for EMSC's experience.

Looking at this second TR with pics from the Steep Gullies, I suspect they are comparable to Main Chute at Alta.
 
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Looking at this second TR with pics from the Steep Gullies, I suspect they are comparable to Main Chute at Alta.
Probably similar enough in many ways. Less obvious lines in places until you've skied them several times. Of course there are also 5 of them vs the 2 chutes on Baldy at Alta. A bit more than half the roughly ~1400' vert is true steeps and cliffs before they mellow out (total run should be over 1600' vert from top of Pali).

As I was curious what the pitch is for them vs Main Chute I bumped into this site linked below. If you click on "interactive map" you can then click on each trail and see a bunch of stats about it. 300+ ski areas listed if you go to the main page or the mountain ranking page. Never seen it before but seems pretty detailed so probably usable as a reference for steepness.

Steep Seeker ABasin
 
Probably similar enough in many ways. Less obvious lines in places until you've skied them several times. Of course there are also 5 of them vs the 2 chutes on Baldy at Alta. A bit more than half the roughly ~1400' vert is true steeps and cliffs before they mellow out (total run should be over 1600' vert from top of Pali).

As I was curious what the pitch is for them vs Main Chute I bumped into this site linked below. If you click on "interactive map" you can then click on each trail and see a bunch of stats about it. 300+ ski areas listed if you go to the main page or the mountain ranking page. Never seen it before but seems pretty detailed so probably usable as a reference for steepness.

Steep Seeker ABasin

That's an interesting site for ranking steep ski runs.
 
That's an interesting site for ranking steep ski runs.
I looked and his source is some combination of OpenMaps and USGS datasets. My test is the resort I currently know best (Eldora) using the vertical profile on Google Earth Pro. The data for Eldora is way off for at least the steeper terrain. He has the best runs anywhere from upper 20 degrees to upper 30 degree max pitch. Reality is that I can easily find (and have pulled out an inclinometer app on phone over the years to verify) plenty of pitches that are between ~40-44 degrees in steepness on their steepest parts. eg Upper Ambush pitch is just over 40degrees at 100m length (he lists 24.5degrees!), West Ridge and Salto Glades are both roughly 44 degrees on the upper pitch (he lists 28.3 and 26.9), etc...

I also know that USGS has done way more fine detail mapping of the bigger resorts in Colo, not because of the resorts being there, but because they are mostly in the headwaters of the Colo river which has so much attention.

And he mentions in the 'about' page that one of his issues is the potential for data quality being bad as he is doing this as just a fun project to try to compare resorts with the same measuring stick vs the ever shifting trail color ratings at each resort.
 
Google Earth shows the Steep Gullies in the ballpark with Main Chute for comparable vertical of about 700 feet.

On another note the Steep Gullies were listed closed last Saturday when I did my final 2025 progress report and remain so today. Have enough rocks emerged in one week of warmish (but not extreme/no overnight freeze) April weather to shut them down for the season?

That level of terrain is very difficult to get covered and stay open for any length of time with Colorado's gradual low water content snow profile.
 
Have enough rocks emerged in one week of warmish (but not extreme/no overnight freeze) April weather to shut them down for the season?
I don't know for sure, but would estimate not. I think that they shut them down anytime it's freeze/thaw cycle since they don't want to have anyone in there in icy conditions (I can't imagine how long Patrol would take to get someone out of the upper parts). Secondly it might be worries about wet slides in the warm weather. I note that they also shut upper east wall and the steep parts of Zuma bowl too. A whopping 2" storm last night; Potential for much bigger storm this Thursday night-Sat.
 
icy conditions ........ wet slides in the warm weather.
I was thinking about the wet slide issue that usually shuts down Pali mid-May. But in this case it was probably icy conditions up top. I've seen Main Chute closed for that reason during some of our Iron Blosam weeks.
 
My Takeaway: The Beavers have a minimal terrain schedule.

It's not Telluride, where your Gold Hill 6-10 is going from February to April, and keeps them preserved via elevation preservation.
 
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