Erie Basin 1, also known as Cell 1e, is a privately owned tailings dam located in Hoyt Lakes, Minnesota. This earth dam, completed in 1978, stands at a height of 200 feet and has a length of 13,600 feet. With a storage capacity of 35,560 acre-feet and a drainage area of 2.4 square miles, Erie Basin 1 plays a crucial role in managing the Embarrass River watershed.

Despite its significant hazard potential, Erie Basin 1 is currently in fair condition according to a 2009 assessment. The dam is regulated, permitted, inspected, and enforced by the Minnesota Department of Natural Resources, ensuring that it meets necessary safety standards. The last inspection took place in October 2018, and the dam has an inspection frequency of 4 years.

As water resource and climate enthusiasts continue to monitor and assess the condition of Erie Basin 1, it remains a key structure in the St. Louis County landscape. With its vital role in tailings management and water storage, the dam serves as a critical piece of infrastructure in the region's water resource management system.