Stealth is the name of the game on all Fall River Basin streams these days. The best time to fish is during days when thunder showers threaten because higher relative humidity brings on denser aquatic insect hatches and clouds mean more overhead cover. However getting hit directly by such a shower isn’t desirable because of discoloring water and bringing on a rapid rise then fall in flow. So hope for a glancing blow or near miss. The bulk of aquatic insect hatches are over on these streams, with speckled duns (#12-14) emerging in the meadow sections, some smaller (#18-22) PMDs, and tricos coming on later. Do not overlook drifting an adult damselfly pattern on the meadow sections, Keep ant and beetle patterns in your fly box, and get those big hopper patterns ready for action. These thoughts also apply to any meadow stream in the Park, so whether Slough or Soda Butte Creeks or the Lamar or Gibbon Rivers, consider them. And yes, Beula Lake still offers some of the fastest fishing in the Park.