trudger
/ˈtruːdʒər/Definitions
1. noun
a person who walks or travels with difficulty or reluctance, especially through snow or other difficult terrain
“The trudger plodded through the knee-deep snow, her face reddened by the cold.”
2. noun
a person who plods or goes at a slow and steady pace
“The trudger was the first to reach the summit, his slow and steady approach paying off.”