Raw soil carbon dioxide, moisture, and temperature data from a mixed conifer and aspen forest stands in the East River Watershed of Colorado June 2011-December 2021.

These datasets contain raw data from adjacent mixed-conifer (Abies lasiocarpa and Picea engelmannii) and deciduous (Populus tremuloides) forest stands in the Elk Mountains at the Rocky Mountain Biological Laboratory in Gothic, Colorado (38.9592◦ N, longitude: 106.9898◦ W and elevation of 2880 m). Each site contains five soil carbon dioxide (CO2) gas probes and three soil temperature/moisture sensors connected to a data logger. Soil temperature, moisture, and CO2 (ppm) concentrations were recorded each hour. There are three attached CSV files; two CSV files are of the raw data collected in the respective forest types, conifer: "Carbone_conifer.csv" and deciduous: "Carbone_aspen.csv". The third file "Carbone_Headers.csv" is a shared headers file for both datasets. Basic data processing and QA/QC was done on the raw data sets. This research was performed to investigate the response of the soil CO2 to inter-annual and seasonal variability of moisture inputs in mountainous ecosystems.