Sledder (noun)

1. A person who rides on a sled, typically for recreation.
2. A person who operates a sled, typically for transportation.

Origin:

From the verb "sled".

Examples:

1. The snow was perfect for sledding, so the kids all ran outside to join the sledders on the hill.
2. In the early days of the gold rush, sledders were the only way to transport goods over the snowy passes.
3. The sledder had a great time speeding down the slope, the wind whipping through his hair.
4. The sledder came to a stop at the bottom of the hill, panting from the exertion.
5. The sledder looked up at the steep incline, wondering if he had the strength to make it to the top.