Last fall, Field & Stream Online Editor Nate Matthews and his father, Bruce, spent 15 days fishing the Rio Grande River from its headwaters in Colorado to its mouth at the Gulf of Mexico. These excerpts from their journals tell the story of their trip.

BM: 9/29, 8:45
We kicked off this morning by running some rapids that were squirrely enough to want to run empty. We planned our route and as with all things, had to modify when we hit the first big rock eddy. We eddied out, but got lined back up and shot the rest, only taking on a little water. Fun run!