Long Side falls away steeply on its south western flank towards Bassenthwaite Lake, these slopes are clothed in the coniferous woodlands of Longside Wood below the 400 metre contour. To the north west the fell descends in steep broken crags to the quiet and unfrequented valley of Southerndale. To the north west the fell connects to the adjacent fell of Ullock Pike by a path that runs for 600 metres along the rim of Longside Edge. To the south east the edge continues from Long Side to link to the higher fell of Carl Side, 800 metres distant.