These high mountain are have many insects, Callibaetis, Damsels, as well as Caddis. The hatch can be tremendous, and if your there at the right time you'll have a glorious day. Well that's just what happen on our hike to a undisclosed lake in Yellowstone country with Grayling. (There is only one lake in Yellowstone country with Grayling*.)
On pattern that worked splendidly, was my K.I.S.S. Damsel, it's simple, extremely fast to tie and works everywhere there are Damsels.
K.I.S.S. Damsel

Hook: Nymph hook 4x long (200R*)
Size 8 - 12
Thread: Olive
Tail:Olive Marabou
Body: Olive Marabou
Rib: Gold Wire
Head: Tungsten Bead sized to hook
* I've found 200R hooks with a bead ride hook point up.
![]() |
Slide bead on to the hook and attach thread. |
![]() |
Tie in wire rib. |
![]() |
Tie in Olive Marabou and form a short tail. |
![]() |
Wrap the marabou forward and tie off. |
![]() |
Counter wrap your wire forward and secure with several wraps. |
![]() |
Whip finish and your Damsel nymph is completed. |
While in West Yellowstone we (Jersey Angler, Rick and I) would tie up some of the patterns we would use the next day.
![]() |
Tying session in the cabin. |
![]() |
This Rainbow smashed the K.I.S.S. Damsel |
![]() |
Greyling takes the Damsel |