As you are driving west on Interstate 40 through Texas, even if you don't even know it, you are heading towards the town of Tucumcari, NM. And eventually you will see a billboard with a familiar face. For most of the people passing this way, this billboard will not trigger an exit. They have schedules to meet; they have never heard of Tucumcari; there is no Starbucks. However, some people may be able to make time. We did. We took the exit. Where do they keep the trilobit

When I was in junior high, our family lived just a few hours from Yosemite National Park. My dad and I did a lot of backcountry hiking. Dad found all the information about our hikes in paperback guides. The radio played for the entire drive to the trailhead (or until we lost reception). When Dad finally parked at our trailhead and turned off the car, the last song I heard would become my mind’s rumination for most of the entire hike. As we donned our packs and plodded