The closest entrances via car are:
1. Big Oak Flat Entrance (Highway 120): This entrance is about 100 miles from Lake Tahoe and will take approximately 2.5 hours to drive depending on traffic and weather.
2. Hetch Hetchy Entrance (Highway 120): This entrance is also about 100 miles from Lake Tahoe but may take slightly longer to drive due the need to travel through the park.
3. Tioga Pass Entrance (Highway 120): This entrance is the closest to Lake Tahoe but is often closed during the winter months. It is about 70 miles from the lake but may take over 2.5 hours to drive.