The Epic Board gives you a visual snapshot of the work happening in a PI. The Epic Board leverages the timeline view to capture the EPIC level cards being worked in a particular PI and Sprint.
Epic Board Layout
The Epic Board shows the timeline on the horizontal (X) axis. The upper horizontal line represents the PI timeline and each PI column is further divided into Sprint sub-columns.
The lower horizontal line shows the date view and corresponds to PI and Sprint start and end date.
Each Sprint column has Epic cards. The Epic card has the basic details like card id and the number of child cards under it. The colored strip at the end of the card represents the unique color that corresponds to that card type. To know more about the color code, see this topic.
Hovering over each of them shows some details of the child cards like the card title and card id.