Tackle & Flies

Recommended tackle

Ye olde tackle... -rods:

 # 6/7, 9' for steamers & other heavy stuff

 # 4/5, 8' for dry-flies etc.

-lines:

WF-floating, WF-fast sinking

-leaders:

 9-14 ft, 1x-5x, strong, scratch-resistant tippet material

-other stuff:

 

-strike indicators, fly floatant

lead shots or similar to get your nymphs down fast

chest waders (MUST have), felt sole+studs recommended

wading staff

sweater & other warm clothing

raincoat & a good wide-brimmed hat

polarizing sunglasses (amber lenses are the best)

sunscreen

adequate (= big) net with soft cotton bag

insect repellent (liquid/jelly type), bug net recommended for Lapland

Fly patterns moved here:Flies that work

I'd recommend these fly patterns on barbless hooks for easier catch-and-release (not obligatory):

plenty of downwing caddis dries in sizes 8-16 (these will usually pass for stoneflies, too); green, orange, gray, black, brown (Goddard or G&H Caddis is excellent)
some upwinged duns in sizes 14-18 and some bigger Mayflies; olive, blue dun (Kite's Imperial is a very good general pattern)
lots of caddis larvae & pupae in sizes 8-14; weighted & floating; green, brown (many Gary LaFontaine's patterns are fine)
few mayfly nymphs in sizes 12-16; both weighted and floating (Gold Ribbed Hare's Ear is as good as any)
some midges in sizes 16-20; dark colors (Black Gnat has been doing well for years)
a handful of streamers sizes 2-6; bleak, sculpin and perch imitations (big Muddler Minnow with variations is just great)