This data set contains snow pit data collected from 13 snow pits excavated during the NASA SnowEx23 field campaign near Fairbanks, Alaska. The snow pits were located across three field sites: the Caribou/Poker Creek Research Watershed, Farmer’s Loop/Creamers Field, and Delta Junction. The data was collected during April 2023 concurrent with the data published as <a href="https://doi.org/10.5067/MNJQKI39VJHG">SnowEx23 Apr23 IOP Snow Surface Imagery, Version 1</a>, and coincident with hyperspectral measurements from NEON towers, drone, NASA's AVIRIS-NG instrument aboard an aerial platform, and other satellite-based hyperspectral measurements. Snow pit measurements were collected adjacent to spectrometer transects established throughout boreal forests, burned forests, and open meadows, with the goal of supporting features of snow spectra such as snow microstructure and water and ice content. Snow pit data was collected, processed, and formatted in accordance with <a href="https://snow.nasa.gov/sites/default/files/users/user354/SNEX-Campaigns/2023/NASA_SnowEx_Experiment_Plan_2023_draft_20June2024.pdf">standard NASA SnowEx methodology</a> featured in other <a href="https://doi.org/10.5067/SJZ90KNPKCYR">SnowEx 2023 snow pit datasets</a>.