Ive read that even when Lee surrendered,a lot of small confe...

Ive read that even when Lee surrendered,a lot of small confederal troops keep on fighting,anyone know how long they fought and for what reason they continued?

As far as organized resistance is concerned:

General E. Kirby Smith surrendered the troops in the Trans-Mississippi Department, On May 26, 1865.

Stand Watie, the famous Cherokee Confederate general (the only Native American to achieve that rank on either side) signed a cease-fire agreement with Union representatives for his command, the First Indian Brigade of the Army of the Trans-Mississippi, becoming the last Confederate general in the field to stand down, on June 23, 1865.

Some consider the activities of "outlaws" like Jesse James and of organizations like the Klan as a continuation of the war by other means. I tend to agree. After all the James and Youngers were robbing YANKEE banks and railroads (BTW AFTER they had tired to surrender) and the Klan was fighting for the restitution of Southern political rights and against the "carpetbagger" state governments. (this phase of the conflict really WAS a "civil war" )

james bros and youngers robbed banks and trains where money had been deposited by pro-union and pro south people alike unless they separated the loot that belong to the pro-south folks and gave it back to them which they didnt,plus people killed who got in their way i wonder if they took the time to find out what side they were on?thankfully the tough people of northfield mn shot the hell out those losers-as for the clan untill 1877 yes i can see your point after that they are just another terrorist organization