The Sierra Nevada Mountains are the mountain barrier Ish crosses on his way toward the San Francisco Bay Area. Their passes and roads turn a familiar journey into a dangerous, uncertain passage: a forest fire blocks his first route, and its aftermath makes him imagine that the mountains may become impassable. The episode gives the range a decisive place in the post-Disaster landscape, where travel depends on infrastructure that no one remains to maintain and natural hazards no longer meet an organized human response.

Setting and Route

After crossing the plains and spending a week in Estes Park, Ish travels through high mountains and desert country before steering along U.S. 40 toward the summit of Donner Pass. The sequence places the Sierra Nevada Mountains between the open interior and California, a boundary Ish must cross to continue west. The pass is not merely a landmark: it is part of a road network whose continued usefulness has become uncertain in a world without repair crews or coordinated emergency services.

The Fire at Donner Pass

Beyond the pass, smoke covers the country ahead. Ish recognizes that lightning will still start forest fires, but there is no one left to fight them. Near Yuba Gap, fire burns on both sides of the road. He gets through the first stretch, then rounds a curve and finds a fallen, blazing tree completely blocking the highway. With no way past it, he turns around and retreats, briefly stopping the car in his haste before getting it started again.

Once clear of that immediate obstruction, Ish recovers his composure and returns to the junction with California 20. Fire has also passed along this road, but it is generally behind it; he proceeds carefully around fallen pieces of tree and makes it through. From a ridge beyond, he sees fire across what seems to be the whole area. The crossing is therefore neither a straightforward escape nor a single barrier overcome: a blocked pass forces a detour, and the alternative route offers passage only through terrain already altered by fire.

Isolation and Consequences

Ish had planned to camp in the cool mountains, but instead continues to a small foothill town so that he will not be trapped by the fire. No lights are burning there. He reasons that the fire has probably taken out at least the local power lines, joining the immediate danger of the burning forest to the larger fragility of systems that had once made travel and settlement dependable.

That night, Ish fears that the Sierra Nevada crossing may remain closed even after the fires burn out. Fallen trees, landslides, and washouts on slopes stripped of vegetation could permanently block the roads. This is his apprehension, not a confirmed account of the range’s later condition; the next morning he considers that a southern desert road might remain open. The episode nevertheless shows how the mountains can magnify the consequences of isolation: a single fire and damaged route leave a traveler with few alternatives and no prospect of organized help.