Below are the default save file locations for Steep by platform:
C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\savegames\UplayID\3279
C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\savegames\UplayID\3280
Settings > System Storage Management > Application Saved Data > Saved Data in System Storage > Steep
My Games and Apps > Steep > Options > Manage game > Saved Data
If you have any questions, feel free to contact us!