The solo student glider pilot reported that, during the return flight to the airport, he was unable to find enough lift and did not have enough altitude to cross a section of forest between his location and the airport. After he selected a field for landing, during the base leg turn, he determined that he did not have enough altitude to clear a line of trees at the threshold of the field. He then continued straight ahead, parallel to the line of trees, and impacted the ground in a small clearing.

The glider sustained substantial damage to the left wing and empennage.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation.