|After a leisurely morning watching the balloons with our morning coffee then breakfast, we did the short loop through a small section of the lava flow area. This is an interesting flow that occurred about 2-4,000 years ago. Rather than from a volcanic eruption, it spewed from volcanic vents in the northern end and flowed along the Tularosa Basin for 44 miles. As it covered the original valley floor of gypsum and stream gravel it would occasionally surround areas of higher ground forming islands . These islands, or older rocks, are called iipukas. Our RV camp is on one of these ipukas. The lava flow covers 125 square miles and is 160 feet thick near the center.