Add missing trail to Welch Village - Back Bowl (Black Forest)

Add hours to Afton Alps; Add website link to Afton Alps; Add Operator to Afton Alps; Add Epic pass to Afton Alps under ski:passes

Tweak difficulty ratings on Trollhaugen ski runs

Added additional ski info to Trollhaugen

Updated Trollhaugen to reflect new expansion added to ski area; corrected trail names and positions; added missing snow-tubing area and novice trails by main chalet

Fix tag names to better follow naming conventions

add sport to Welch Village area

Update Welch Village info

Added hours, operator, operator:type, and additional ski information to Spirit Mountain in Duluth, MN

Add Winter Sports Area: Buck Hill; added details to winter sports area; created new tags for designating specific information regarding ski areas such as number of trails, their difficulty levels, what passes can be used with the resort; added operator

Added operator to Afton Alps

Updated information for Welch Village ski area: added operator information, opening hours. Hours are taken from Welch Village website, same with operator info.

Specify parking access

Specify parking types

Specify road surfaces

Specify whether public transport stops have bins

Specify whether public transport stops have benches

Specify whether public transport stops have shelters

Specify whether pedestrian crossings have markings

Specify whether crosswalks have tactile paving