Ozone Mapping Project
This site includes the ability to map Colorado Front Range near Rocky Mountain NP

Air Quality Monitoring Data for Rocky Mountain National Park
The website for the National Park Service, Air Resources Division, data for Rocky

UV Radiation Monitoring by EPA and NPS

Niwot Ridge Meterological Data Monitoring
A link to the data from Niwot Ridge, just south of the park

USGS Big Thompson/ Moraine Park Stream Gauge

USGS Colorado River/Below Baker Gulch Stream Gauge

Loch Vale Watershed Research Project
A website that has research publications, data, and results from the 20+ years of monitoring the watershed

National Park Service Water Quality Data Management and Archives
A link to the NPS website for water quality data

USGS National Water Quality Assessment Data Warehouse This portal summarizes data for river basins across the US, including the Upper Colorado and South Platte basins, both partially within the boundaries of the park; data include water quality, stream flow, sediment analysis, and fish community information.