The valley in summer is as hot and buggy and crowded as I would have thought, but I’m here for a trails workshop and spending much of the day indoors anyway. The point was to learn to use tools, become handy … but I can’t help but maneuver into my comfort zone—i.e., bullshit—and instead wind up debating fundraising language with a rep from another nonprofit. His expression suggests he may fake a seizure in order to end the conversation. Whatever.

The workshop also includes a bit by the park geologist, whose job it is to investigate rockfall in the middle of the night and shoot LiDAR at El Cap. He’s pretty cute and also talking casually past my farthest points of reference in space and time: of bedrock 2,000 feet below the valley floor, of using cosmic rays from another solar system (????) to measure isotopes in flecks of quartz. In combination with the heat this is dreamlike and soothing. “The granite you see is the guts,” he says, “of hundred-million-year-old volcanoes.”

At 10 p.m. that night I’m hiking back down from Glacier Point when I encounter a mule deer glowing electric white, like it’s Harry’s patronus* or being abducted by aliens. In reality it’s backlit by the headlamp of an off-duty ranger, who mitigates my initial disappointment by walking the rest of the way with me and reciting draft tour scripts that didn’t pass muster with his supervisor. These include a talk on the cultural role of selfie sticks and another I would have titled, “Did you guys have any idea how badly this park fucked over the Miwok?”
The following evening finds me at the base of Yosemite Falls. I’ve never been before, and in the fast-failing twilight the hurtling plumes appear as a massive, warlike spectre, emitting a howl from another world. I have water on my face, my heart in my mouth.
* J.K. Rowling’s marketing team says mine is a falcon, so.