The Geehi is a rainbow trout river in the NSW high country, and by FlyLife's account there are no angler tracks along it. The reason to make the walk is rainbow trout in two very different moods.
As that account describes it, the river splits into two parts at the junction where Valentine Creek comes in. Above it is small pocket water, high up. Below it, extra flow from two side creeks turns the river into bigger, more turbulent runs. So there are two trips, and they fish differently.
Start below the junction. FlyLife's writer describes these runs as turbulent but very fishable, with a green tinge that recalls a New Zealand river. Rainbow trout are the fish. Go in summer, which the same account treats as the only sensible season, and plan to be on the water for the late afternoon. No water-specific rule was found, which in practice means you check the current NSW fishing guide for the licence and any closed season before you walk in, rather than assuming either way.
The second trip is the pocket water above the junction, for a day when you want small fish on a light rod in tight country. The account describes much of it as flanked by dead trees, so a good bet is to expect open banks and little shade. It is a summer trip too, and in our experience a slower one: getting around each pocket is most of the work, and fish in water that size tend to run smaller. Do not make the drive for the headwaters alone; fish them as the second day, once the lower river has shown you how the trout here behave.
Pick the lower runs for your first day, pack light because you will carry it all through scrub, bring a box of caddis dries, and check the gauge card before you set off.
Water and habitat
Two kinds of water, divided by the Valentine Creek junction. FlyLife's account describes the upper river as high, small pocket water; in our experience that means small plunges and short tails behind boulders, the kind of stream you fish one rock at a time. Where the trees along it are dead, the banks give little cover, so expect the fish to rely on broken water and depth for safety and to see you coming across open ground.
Below the junction, the same account says, Back Flat and Valentine creeks add their flow and the river widens into more turbulent runs. In our experience trout in water like this sit on the soft edges of the current: the seam where fast water meets slow, the cushion in front of a boulder, the slack behind it, and the tail where a run shallows before the next drop. The gradient and flow charts show the shape of the river better than words can.
Fish and forage
The fish are rainbow trout. FlyLife's writer ties the best activity to caddis and stoneflies on the wing late in the day, so those two insects set the fly box. A caddis dry, a stonefly dry that floats in rough water, and a nymph to hang under it cover most of what you need. Rainbows in fast pocket water rarely get long to decide, so an accurate, drag-free drift matters more than an exact imitation.
When to fish it
Summer. FlyLife's account treats it as a summer-only option, given the high country and the trackless scrub it describes. Within the day, the late afternoon is the time FlyLife's writer names, when caddis and stoneflies are flying. Fish the middle of the day with a nymph under a dry if you must, but save your energy and your best water for the evening. Outside summer we have no good read on it, and in our experience high streams like this are a poor bet in cold weather.
How to fish it
Travel light, because you will carry everything through scrub. A 2 or 3 weight suits the pocket water up high; a 4 weight gives you a little more control in the bigger runs below the junction. Use a floating line and a leader of around 9 feet tapered to 5X. Short casts, high rod, as little line on the water as you can manage.
Fish upstream. Put the fly into the head of each pocket and let it ride through the seam, then move on; two or three good drifts tell you whether a fish is home. On top, an Elk Hair Caddis in size 14 to 16 for the late-afternoon caddis, and a Stimulator in size 10 to 14 as a stonefly stand-in that stays up in turbulent water. Under the Stimulator, a bead-head Hare's Ear in size 14 to 16 on a short dropper covers the fish that will not come up. As the light fades and the caddis fly, try skating the caddis dry across the tail of a run.
Access and safety
The access card names the entry points. Treat them as locations, not a statement of permission, and confirm on the ground. FlyLife's writer describes no angler tracks along the river, with the choice being to push through waist-high alpine heath and scrub or to boulder-hop close to the water. That account also recommends a deliberate approach to wading.
As on any trackless bush river, tell someone your route and when you expect to be out, carry water and a first-aid kit, and give yourself enough daylight to get back through the scrub. Wade slowly, test each step on the boulders, and stay out of the heavier runs below the junction if the gauge card shows the river up.
Regulations
No rule specific to the Geehi River was found. Check the current NSW Department of Primary Industries and Regional Development recreational fishing guide for the licence, the bag and size limits for trout and any closed season before you fish, and take those from the guide.
