In February, 2011, the Maryland Department of Natural Resources (DNR) plans to begin stocking rainbow and brown trout into freshwater streams and ponds across the State. According to the agency, approximately 327,000 fish will be released.
The stocking schedule is online at www.dnr.maryland.gov/fisheries/stocking and is also available at DNR Regional Service Centers and license vendors. Anglers can also call 1-800-688-3467 for fish stocking updates.
Pre-season stocking usually starts in the eastern part of the State followed by the western region as the weather warms up.
source: MD DNR
Update: In 2011, some Maryland stocked trout were infected with whirling disease