Usually can catch em spawning up there anytime in May. With the weather have caught them spawing in late April and even caught them one year spawing in early june. I dont think you can go to wrong with may though.
I know this will depend on the weather. but i have a short memory, trying to schedule time off work. can anyone give me a general idea when the spawn is at Mark Twain. I think it was scattered last year, but cant remember the year before.
Usually can catch em spawning up there anytime in May. With the weather have caught them spawing in late April and even caught them one year spawing in early june. I dont think you can go to wrong with may though.
The week before you get there and the week after you leave! :D