Aspen Journalism Steve Sanders of Canyon Summits gestures to backup generators at the company’s Hanging Lake site that would supply power to cellular equipment in the event of a power outage. Photo courtesy Canyon Summits A developer with an unfinished project to build cellphone towers in Glenwood Canyon is concerned that other players in the industry are trying to create additional wireless networks there that could lead to a proliferation of towers and antennas, threatening the canyon’s environmental and historic integrity. Canyon Summits, a Massachusetts-based company formed to develop and manage wireless facilities in Glenwood Canyon, first secured leases from the White River National Forest and the Colorado Department of Transportation in 2012 to build cellphone towers on those agencies’ property at the four rest areas off of Interstate 70 as it threads its way through the canyon of the Colorado River.