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2019 Keeling Pit Noxious Weed Management Plan <br /> By the Huerfano County Noxious Weed Department <br /> Date of Review: 8-12-19 <br /> Site: Keeling Pit <br /> Mine I.D.: M-1991-081 <br /> Long\Lat: 37.53060, -105.08203 <br /> Status: Active <br /> County: Huerfano <br /> State: Colorado <br /> Type: Non-metallic surface <br /> Reviewed By: C. Bryant CDA QS License#: 33222 <br /> OVERVIEW: In the early summer of 2019,the Division of Reclamation, Mining, and Safety <br /> conducted an inspection of the Keeling Pit located on C.R. 440 in Huerfano County, Colorado. <br /> Upon inspection of the area, Division staff found site conditions unsatisfactory given the <br /> widespread distribution of hoary cress (white top) throughout the mined area. The Division <br /> directed the owner\operator Sam Keeling,to establish a noxious weed management plan to <br /> address the issues related to noxious weed species found on site. Staff of the Huerfano County <br /> Noxious Weed Department conducted a site evaluation with Mr. Keeling on August 12t" of <br /> 2019. Large amounts of senesced hoary cress were found throughout the mine area, as well as <br /> moderate amounts of leafy spurge and lesser "C list" species. <br /> A. SITE OBSERVATIONS\NOXIOUS WEEDS PRESENT <br /> The Keeling Pit area is approximately 10.75 acres. Present conditions consist of widespread <br /> hoary cress among the pit perimeter and surrounding mine area with an overall gross <br /> infested area of 9.34 acres. Hoary cress was senesced at the time of the evaluation and was <br /> bearing seed. Leafy spurge was encountered starting at the northwest corner, extending <br /> through the western most border to areas within the pit bottom itself, with an overall gross <br /> infested area of.96 acres. Leafy spurge found on site had already set seed for the season <br /> and had ceased flowering. Scotch thistle was encountered along the western high wall with <br /> an overall gross infested area of approximately 100 square feet. The Scotch thistle was <br /> severely damaged by grasshoppers which had interrupted seed set due to their feeding of <br /> the flowering buds and foliage. Other"C list" species were encountered throughout the site <br />