Abstract: A comparative study of two restored limestone mine sites with adjoining natural forests has been undertaken to evaluate the impact of restorative interventions on floristic structure and composition. Sahastradhara and Chunakhala located in Doon valley and Mussoorie hills, Uttarakhand, India. The ecological restoration of both mines was done in 1988-89. Species diversity of Chunakhala and Sahastradhara restored sites was 1.74, 1.85, 0.57 and 1.44, 2.0, 1.9 for herbs, shrubs, trees respectively and for their adjoining natural sites was 1.99, 1.91, 1.2 and 2.2, 1.59, 2.55, respectively. Phytodiversity assessments in all the sites lead to the conclusion that Sahastradhara restored site represents higher diversity of shrubs and trees than Chunakhala restored site as well as its adjoining natural forests. This paper describes the floristic composition and species diversity of these two mined areas after 21-22 years old restoration and also states a comparison with their nearby natural forests.