Gravel Mine
Gravel was first mined in 1958. Open pits and puddles of groundwater were all that remained after the property had been stripped 15 feet down to bedrock.
Reclamation
In 1974, the county initiated a reclamation program after county residents expressed strong interest in creating a wildlife habitat. Piles of rock were compacted into dikes creating three ponds. Two additional ponds were added during the 1990s. Tree and shrub seedlings were planted and dry areas were seeded to help foster natural re-vegetation. The ponds were allowed to fill with groundwater and then stocked with fish.
Evolving Ecosystem
Walden Ponds Wildlife Habitat first opened to the public in October 1975 and is a work in progress, a park that is still evolving as a wildlife habitat and recreational retreat.
The Name
Contrary to what many believe, Walden Ponds is not a reference to Thoreau’s pond of the same name. It is named after Walden “Wally” Toevs, the Boulder County Commissioner who spearheaded the plan to convert the gravel pits into a wildlife habitat in the 1970s.