Aerials of Project Facilities

Overview

Compilation of aerial photographs of the Crandon Project area with the project boundary demarcated in yellow. Major project facilities including the Plant/Mill Site, Tailings Management Area, and the Soil Absorption Site are portrayed in red, and the Ore Body outline in green. Gaps in the aerial photographs are indicated in white. State Highway 55 traverses across the northwest corner.

Oak, Little Sand, Duck, and Deep Hole Lakes are clustered near the bottom of this compilation. Ground Hemlock Lake is located at the extreme eastern end.

Plant/Mill Site and Ore Body

Aerial photograph in the vicinity of the Ore Body, which is approximately one mile long in the east-west direction. The prominent green outline of the Ore Body is the projection from the top of the bedrock to the surface. The less prominent green outline is the projection of the Ore Body at the bottom of the underground mine. The exploration drilling pads were located immediately north of the Ore Body because of the near vertical orientation of the geologic strata. In order to intercept horizontally equivalent layers within the rock units (i.e. the Crandon Formation), it was necessary to locate the pads further to the north because the rock is projected in that direction.

The outline of the Plant/Mill Site is projected in red. The project boundary is demarcated in yellow. Oak Lake (left) and Little Sand Lake (right) are located near the Ore Body. Skunk Lake is a small body of water located slightly east of the Plant/Mill Site.

Tailings Management Area

Aerial photograph near the Tailings Management Area (TMA). The disturbance footprint for the facility, including the soil borrow area in the northeast corner, is projected in red. The three disposal cells and reclaim pond are projected in pink. The temporary high-sulfur waste rock storage area is projected in green. A pipeline would be used to transport slurried tailings from the Plant/Mill Site to the TMA. The project boundary is demarcated in yellow.

Hemlock Creek is located immediately to the northeast of the TMA. Near the southwest boundary of the TMA are Duck Lake (above which is Lake 31-13) and Little Sand Lake. Skunk Lake is located immediately to the east of the Plant/Mill Site and railroad spur.

Soil Absorption Site

Aerial photograph near the Soil Absorption Site (SAS), the disturbance footprint is projected in red. Treated wastewater that meets groundwater standards would be pumped from the Mine/Mill Site to the SAS and discharged through a series of six seepage cells portrayed in white. The actual discharge rate would approximately correspond with the amount of groundwater that flows into the underground mine. The project boundary is demarcated in yellow.

Lake Metonga is located to the northwest of the SAS. Swamp Creek bounds the SAS to the east and south. Geologically, this facility is located in a glacial outwash channel utilized for farming potatoes; whereas the Plant/Mill Site and TMA are located in forested drumlin uplands.