This is a mousepad featuring the sunner lagoon from Riven. This mousepad was sold in the Gear for the Journey catalog for $7.95, titled "Sunner Lagoon - MP02".

The rocks have a slightly different texture than they do in the final game, which is most visible on the right-hand side near the steps. This same render was also used in another mousepad that briefly appeared on the Cyan website in 2020, but was cropped differently.

    (4787 x 5675, 13.28 MiB)  

Cloth top with rubber base. Dimensions: 23.25cm x 19.5cm x 5mm