Shoshone and Lewis lakes are fishing very well for those using boats. Look for weed beds and use full sink lines to present small leech patterns or lead-free fly rod jigs there. Firehole River is still a great location for life cycle PMD and BWO patterns. Don’t overlook white miller patterns. Madison River PMDs are attracting fish, too. Trout Lake is open now and should remain good fishing for another week or two. Here is your chance to encounter the biggest cut-bow hybrids in the Park. Fall River Basin streams will be better fishing when run-off leaves in a week or so.