Habitat fragmentation represents one of the most dramatic anthropogenic disturbances in the world’s forests. In the narrow context of Alberta's boreal forest, seismic lines are the most important cause of landscape fragmentation, and they are leading to detrimental effects on wildlife populations. Active restoration treatments are therefore being used to restore habitat functionally and ecologically. Given the high cost of restoration and extensive network of seismic lines, identifying favorable conditions for natural reforestation versus active restoration is a management priority. In some cases, other resource extraction, including forest harvesting overlaps with seismic line disturbances. A key question is whether forest harvesting “erases” seismic lines during regeneration of early successional trees within the overall harvest block without further restoration treatments. This project examines whether cut-blocks in mesic upland forests enhance the regeneration of seismic lines. I found that 70% of seismic lines within cut-blocks reached the Alberta reforestation standard, while only 30% of seismic lines in the mature uncut forest reached the same benchmark standard. Moreover, regeneration density inside the line within harvests was 80% higher than in the uncut forest. This suggests that harvesting does provide the conditions for the structural regeneration of seismic lines, even when line fails to regenerate naturally in unharvested sites. Although the application of harvesting practices is not a feasible solution for the restoration of seismic lines, it is important to know whether areas that experience forest harvesting will contribute to the long-term reforestation of these linear features, without more directed active restoration needs. This is generally supported by my results.