The lakes and streams of Grand Teton are popular fishing destinations, loaded with lively cutthroat trout, whitefish, and mackinaw (lake) trout in Jackson, Jenny, and Phelps lakes. Jackson has produced some monsters weighing as much as 50 pounds, but you're more likely to catch fish under 20 inches, fishing deep with trolling gear from a boat during hot summer months.
The Snake River runs for about 27 miles in the park and has cutthroat and whitefish up to about 18 inches. It's a popular drift boat river for fly-fishermen. If you'd like a guide who knows the holes, try Jack Dennis Sports (tel. 307/733-3270; www.jackdennis.com), Triangle X Float Trips (tel. 307/733-5500; www.trianglex.com), or Westbank Anglers (tel. 307/733-6483; www.westbank.com). The going rate is $350 for a full day for two people. Signal Mountain Lodge (tel. 307/543-2831) offers guided half-day trips on motorized craft in Jackson Lake for one or two people for $200. As an alternative, stake out a position on the banks below the dam, where you'll have plenty of company and just might snag something. While special fishing permits are issued by the Park Service in Yellowstone, a Wyoming fishing license is required of anglers in Grand Teton (nonresident $10 for 1 day, $75 for season; $3 per day, $15 season for youngsters 14-18; no license required for under 14). A $10 Conservation Stamp is also required for all licenses except the 1-day variety.