The Sierra Club in Kansas says state health officials and Kansas State University removed an ozone pollution monitoring site near Manhattan to prevent data collection that might support federal limits on Flint Hill grassland burns.
State health officials dispute that charge, saying the device 10 miles from Manhattan was unplugged because the equipment was more suitable for evaluating pollution in population centers.
Kansas State did not respond to request for comment.
Air-quality equipment at the Konza Prairie was unplugged in April 2013, just before burn season.
The Kansas Turnpike Authority is considering building a scenic outlook along Interstate 35 to allow travelers to stop and appreciate the Flint Hills.
The turnpike authority is considering improvements to on and off ramps south of Emporia that currently serve cattle owners, who truck in their cattle to graze in the spring and then retrieve them in the fall.
If the project is successful, it would be the first scenic overlook on the turnpike.
The wild horses of the west are being managed by the federal government with 71 million tax dollars. Some people believe that the herds are growing too large and that the horses are over populating the western public lands, taking up resources that could be used for cattle, wildlife and recreation use. But extra feral horses can't be shot or slaughtered and few are adopted. So thousands are shipped to the Midwest for safekeeping on large ranches. KMUW's Aileen LeBlanc visited a herd of wild mustangs in the Flint Hills near Cassoday.