I ran across this blog today, Devin’s Fishing Reports. This guy is 15 years old and he’s out fishing pretty often. His site has lots of good info about trout fishing around Thurmont, Maryland, including Big Hunting Creek and nearby streams. Check it out!
UPDATE: I got this from a comment on Devin’s blog – Frederick County Maryland At-A-Glance is a great resource if you’re planning on bushwhacking around Catoctin Mountain Park, Cunningham Falls State Park or Frederick Municipal Forest for some brook trout. Shows property lines and other information on an interactive map. I’ve updated the Resources link on this site.