Living in a Caddisfly Case: Part Two

By Cassie Sevigny

My first trip, we had to leave Missoula to reach our stream site. My mental orientation at this point lacked a compass rose. I biked to the office, crammed myself into Becca's car like another piece of gear, and sat quietly for an hour while we drove off the map into the Wilds of Montana. That is, we went to Lolo.

We lost cell phone service. We passed driveways with signs and side roads without. Rusty pickup trucks guarded the paint-peeling houses. We parked on a dirt shoulder near the day’s assigned stream spot. Popped the trunk, loaded our arms with waders, measuring tools, and clipboards.

Riverside, we untied our shoes, stowed them on the bank, and pulled on the waders. I glanced enviously at the boot-waders the rest of our small team wore. With small feet, my only option were the child-sized, overall-style waders. The waterproofed camo fabric of the legs hugged me so snugly that I had a slight penguin-like waddle. But my waders had pockets.

We had several sets of data to gather, and one of those was called Pebble Count. That sounded pretty boring at first – just gonna start counting pebbles, we’ll be here all day folks. But during Pebble Count we do not actually do any counting of pebbles. We measure rocks.

I reached into the water, hand stinging from the sudden cold, picked up a rock in front of my foot, and pulled a lime green ruler from the pocket of my waders. Daylight reflected off the wet rock. Wait, no, those shimmering striations were embedded in the piece of granite! I tilted the rock back and forth in my hands.

I held the ruler to the rock along its B axis – not its height or length, but width – to find its mediumest measurement.

“50 millimeters!” I yelled to my partner with a clipboard.

I pocketed the rock. When else was I going to find such a glittery rock? I took a step forward deeper into the river. My hand made the polar plunge again to retrieve a second rock. It too, sparkled. Looking up from my Pebble Count, the entire streambed was composed of these sparkle-ridden rocks, a river of treasure flowing through the mountains underneath the crystal clear waters.