Beyond Hamilton Lake, the High Sierra Trail climbs steeply toward Kaweah Gap, passing through one of its most remarkable features: a man-made tunnel blasted into the granite cliffs. This section of the trail was carved out in the 1930s into the rock faces above Precipice Lake, making it one of the most dramatic and exposed parts of the journey. The tunnel, chiseled through solid rock, was built to create a safer path across an otherwise impassable cliffside. Just beyond the tunnel, the trail follows a narrow ledge with steep drop-offs and breathtaking views of the valley below. Despite its exposed nature, this section remains well-constructed and navigable, adding to the adventure of the High Sierra Trail. Snow, however, can linger here well into summer, making footing tricky early in the season. Hikers should proceed carefully, especially if ice or lingering snowfields are present.