Grand Teton National Park  rivers and lakes contain cutthroat, lake, and brown trout, along with whitefish. Park anglers must have a valid Wyoming state fishing license, available for $14 per day to nonresidents. Kids younger than 14 don’t need a license if they’re with an adult who has a valid fishing license.
Pick up a helpful handout describing fishing regulations and seasons from park visitor centers. Fishing licenses and supplies are available at park marinas and stores.
Yellowstone and Grand Teton have different fishing regulations and license requirements. If you’re heading into Yellowstone to fish, you’ll need to purchase a special Yellowstone National Park fishing license. Both parks prohibit the use of nonnative baitfish.
Located in Moose , Snake River Angler (307/733-3699 or 888/998-7688, www.snakeriverangler.com ) sells and rents fishing supplies. Their guides offer learn-to-fly-fish lessons for beginners, along with boat-based guided fishing ($475 for two).
Fishing guides are also available from Signal Mountain Lodge Marina (307/543-2831, www.signalmountainlodge.com ) and Colter Bay Marina (307/543-3100 or 800/628-9988, www.gtlc.com ), along with many Jackson-based operations.
In Jackson , drop by Jack Dennis’ Sports (50 E. Broadway, 307/733-3270 or 800/570-3270, www.jackdennisoutdoors.com ) to pick up a free copy of Jack Dennis Sports Fly Fishing Guide, with descriptions of regional fishing areas and advice on which lures to try.