Earlier in March of this year (2015), students Nick Patton and Mitch Price dug a soil pit in Johnston Draw Watershed's rhyolitic upper terrace. Their goals are to determine total mobile regolith depth and total soil carbon, as part of their projects:
- "Determining Total Mobile Regolith Using Topography and Lithology"
- "Topographic and Lithologic Controls on Soil Carbon in a Semi-Arid Environments."
They made a time-lapse video during the early part of their work: