Viewshed of the entire #PacificCrestTrail. A viewshed is the unobstructed area you can see standing at a given location. A vista, you probably have expansive views. The bottom of a canyon, maybe not so much. www.youtube.com/watch?v=tmY2... There's one for the #JohnMuirTrail, too! #ParkChat

How cold does it get? Probably the most frequent question asked by hikers. Fortunately, it's easy to answer empirically using climate data. Entire year graph and July min temp overlay for visible trail. www.postholer.com/map/Pacific-... #PacificCrestTrail #JohnMuirTrail #ParkChat

Be careful out there! www.latimes.com/california/s...

the steps go up ⬆️ the steps go down ⬇️ watch @ tinyurl.com/mythic-ep18 in this video, i hit some good midwest hills to prep for my upcoming pacific crest trail hike! #pct #pcthiker #pacificcresttrail #hiking #training

Stellar camping spot 5.1 miles south of Scissors Crossing.

Hiking the Pacific Crest Trail that runs through three western states is already challenging. Now the grueling journey may become even tougher this year due to federal cuts.

Just a heads up. If you're looking to hike in NorCal between Castella and Seiad Valley (this includes Etna), snow conditions are ~200% of normal. Often, you can get in there late May/early June. Check before you go! www.postholer.com/snow/Pacific...

April 1st, 2025 has arrived! Highlights: + Sierra, 106% of average or near normal. + Central OR, 280% average, snowiest in at least 22 years! + Northern Cascades WA, tad below normal. www.postholer.com/snow/Pacific... Depending on melt, hikers in the 3 Sisters OR area might see snow into August.

Spring they said. www.postholer.com/map/Pacific-... #PacificCrestTrail

Little Crater Lake, Oregon. Easily worth the flat, 5 minute walk off-trail. www.postholer.com/journal/Paci... #ParkChat #PacificCrestTrail

Wind turbines, the good, the bad and the ugly. postholer.com/map/Pacific-... Zoomed out you get clusters of turbines, zoom in for individual turbines. Mouse over or click turbine for more info. We've added wind turbines to our data on Postholer Interactive Maps.

Here are 2 photos of post lightning strikes along the #PacificCrestTrail. Image 1, from 2013 just north of Separation Creek in 3 Sisters Wilderness, OR. Barked stripped and duff/root structure still smoldering. Image 2, from 2003 just north of Fire Creek Pass, WA, moments after strike. #ParkChat

Sierra 'trail snow' is now 116% of average for this date, thanks to the recent, significant system. San Jacinto, Big Bear and the Angeles NF in SoCal also received a good dump. www.postholer.com/snow/Pacific...

Next up: www.postholer.com/map/Pacific-...

Ladies & gentleman, it snowed. The sierra got a significant bump over the last few days, going from 60% to 90% trail snow, SWE. www.postholer.com/snow/Pacific... Still 2 months to go till peak sierra snow season, so stay tuned! #PacificCrestTrail #JohnMuirTrail

Rainfall (not SWE) across the sierra is continuing to look very dry, ranging from 30%-70% of normal, around 50% overall. Plenty of winter remains to turn that around. Let's wait and see how it plays out. Good for hikers, maybe dry water sources in the south. www.postholer.com/map/Pacific-...

Here's the latest 'trail snow' conditions in the sierra. The very, very dry stretch continues. Trail snow between Crabtree Mdw & Tuolumne Mdw is at 66% of normal for this time of year. Let's see what the rest of winter holds: www.postholer.com/snow/Pacific... #PacificCrestTrail #JohnMuirTrail

How dry is the southern California #PCT? The first 500 miles of trail is currently 5% to 25% of normal. This translates roughly 5-10 inches of rain so far, with mountain areas at the 25% end. See how this water year compares to climate, anywhere along the trail. www.postholer.com/map/Pacific-...

Sierra trail snow is at %85 of normal. Oregon trail snow is over 200%, easily exceeding Apr 1! Northern Washington, north of Glacier Peak, is very average, with southern & central well above average. So far, looking good for north-bounders! Still early, though. www.postholer.com/snow/Pacific...

Works for the #PacificCrestTrail, too!

Here's an animated 'viewshed' of the #PacificCrestTrail. This shows all visible/invisible terrain along the entire trail. You'll find one for the #JohnMuirTrail as well. www.youtube.com/watch?v=tmY2...

Tale of the Trail: Land Cover Change postholer.com/articles/Tal... Introducing 28 years of land cover change on your favorite trail! This is the latest feature added to Postholer Interactive Maps. It's made possible by @USGS and Multi-Resolution Land Cover Characterization Consortium.

Southern California near trail wildfires 2000-2024, a cautionary tale. Be careful out there. www.postholer.com/map/Pacific-...

Oregon has received half a season worth of snow during November. It's about 7 weeks ahead of schedule. The sierra and Washington are looking normal. www.postholer.com/snow/Pacific... #PacificCrestTrail #hiking #snow

3 day rain totals... www.postholer.com/map/Pacific-...

And here is the @mosquitoalert.bsky.social joining us here at Bsky. Help us track disease carrying mosquitoes across the world. Get the apps for iPhone itunes.apple.com/app/id890635... and Android play.google.com/store/apps/d... #CitizenScience #Mosquito #MosquitoSurveillance

3 day snow totals forecast for the #PacificCrestTrail: www.postholer.com/map/Pacific-...

Work in progress. Examples of #PacificCrestTrail map updates. Still lots to do!

...aaaand speaking of snow, the Postholer Snow Page started updating Nov 1st. It updates every 3 days and allows you to follow along with the sierra snow season. Just a bit at the moment. www.postholer.com/snow/Pacific...

As snow season winds up along the #PacificCrestTrail and the #JohnMuirTrail, you can't help but remember the mega snow season of 2022-2023 in the sierra's: www.youtube.com/watch?v=TgbS...

Endless amounts of trail information can be found on the #PacificCrestTrail Interactive map. Climate, flora, fauna, current snow & weather, it's all there: www.postholer.com/map/Pacific-...

Learn about the #PacificCrestTrail using the #PCTDatabook for every step of the trail: www.postholer.com/databook/Pac...

Plan your #PacificCrestTrail adventure using the popular #PCTPlanner: www.postholer.com/planner/Paci...