Somewhere past mile 1,500 in Northern California, a Pacific Crest Trail hiker's week delivered a bit of everything: a surprise black bear cub five metres away, a rattlesnake camped on the trail, cold Dr Pepper left by strangers, and skies thick enough with wildfire smoke to mute the jagged spires of Castle Crags.

This stretch of the PCT runs through the volcanic backcountry north of Lassen, with Mt Shasta looming on the horizon day after day. Our diarist — an Australian thru-hiker deep into a 2,650-mile walk from Mexico to Canada — logged days of 40 to 52 kilometres in brutal heat, cooling off in swimming holes along Yét Atwam Creek and rationing energy through smoky, shadeless climbs.

The trail's community is half the story. An ammo box marked "PCT hikers only" turned out to be a cache of treats, and trail angels appeared with coolers of soda, chips and root beer at road crossings and water sources. In town, the group based themselves at the Crossroads Hiker Hostel, where a cook-your-own pancake breakfast and loaner clothes come standard. Dinner at the Jubilee Railroad — a restaurant housed in actual dining cars — turned out surprisingly fancy for dusty hikers, with the Dak Bulgogi earning a firm recommendation.

Not everything went smoothly. A 30-mile day ended at a campsite smelling strongly of cow patties, with a water trickle so feeble the hikers had to improvise grass dams to fill their bladders. The trail inexplicably jogged southbound for miles, prompting the classic thru-hiker gripe that driving to Canada would only be about 1,400 miles. And wildfire smoke thickened daily, scratching at throats and blurring the ridgelines — an increasingly normal hazard on a summer PCT hike.

For anyone dreaming of a long trail, this week is a good reality check and a tempting advert at once. The rhythm — 25-mile days, midday siestas in the shade, a town stop every week or so for showers, resupply and burgers — is learnable, and camaraderie on trail is real: hikers shared camp, invented a game of NorCal Bingo with beer on the line, and ran a book club through Dune (verdict: a slog).

Why it matters: NorCal is where many thru-hikers hit their stride or their slump. If you're considering the PCT, this is the stretch to know about — hot, dry, smoky in late summer, but rich in trail angels, swimming holes and Shasta sunsets that light the whole sky rose and periwinkle. Even day hikers and section hikers can taste it: Castle Crags and the Shasta area offer shorter options with the same volcanic drama.