For those of you that may not know, Ulster County is in the Catskills here in NY
The general trout season in NYS opens April 1, 2010 but there are some waters that are open all year—generally special regulations (catch and release) sections of some streams.
NYC Reservoirs are also open to fishing all year, but have special regulations: Special Fishing Regulations for New York City Reservoirs - NYS Dept. of Environmental Conservation
Note that you’ll need a special permit to fish NYC reservoirs in addition to your NYS fishing license —info is at the bottom of the link.
Here’s a link to NYS DEC’s web page. Fishing - NYS Dept. of Environmental Conservation
From here you can see links on the left of the page to:
Regulations (pay special attention to new rules on possessing and fishing with baitfish if you use them)
Hotlines that will give you updates on local fishing (Ulster is Region 3)
Places to fish
Fish stocking schedules
As a practical matter, with all the rain we’ve had lately, the rivers and streams are roaring and it will take a bit of time before they settle down.
They’re also a bit cold, so things probably won’t get underway until water temps in streams hit 50 degrees.
Your best bet would be to pop into a fishing tackle shop or fly shop up there to find out what’s been happening in the reservoirs and to get some advice on what waters may be open and fishable near you.
There are some fly shops near you that will give stream reports up there for fishing conditions and what flies have been working. Here are 2 of them:
Dette Trout Flies in Rosco Daily Report | Dette Trout Flies
daily updates will be starting end of March, as well as a daily phone recording
Catskill Flies also in Roscoe Catskill Flies