Did this from the Penny Pines trailhead. About 8 miles in total, 4 hours. It was about 89° out, definitely hotter than expected, especially at an altitude where snow falls in the winter. Went through 2L of water easily, should’ve brought 3. Definitely one of the most scenic routes in all of Mount Laguna. I like Garnet Peak a little more because there’s no antennas or buildings, but Monument Peak is definitely a more epic vantage point as it’s a bit higher and more prominent. The sweeping views of the Anza Borrego desert down below are amazing. I look forward to doing this one again in the winter, when the sky is clearer and there’s snow on the ground.