Laserfiche WebLink
3. If subsurface cultural resources are unearthed during operations, activity in the vicinity of <br />the cultural resource will cease and a BLM representative notified immediately. Pursuant <br />to 43 CFR 10.4 the holder of this authorization must notify the authorized officer <br />immediately (by telephone and written confirmation) upon the unlikely discovery of <br />human remains, funerary items, sacred objects, or objects of cultural patrimony. Further, <br />the operator must stop activities in the vicinity of the discovery and protect it for 30 days <br />or until notified to proceed by the authorized officer. <br />4. The operator is responsible for informing all persons associated with this project that they <br />will be subject to prosecution for knowingly disturbing Native American Indian shrines, <br />historic and prehistoric archaeology sites, or for collecting artifacts of any kind, including <br />historic items and/or arrowheads and pottery fragments from federal lands. <br />5. The operator will contribute ten cents/ton to the Grandview Ridge mitigation fund. These <br />funds will be used to resources in the Grandview Ridge parcel. <br />2.3.3 Invasive, Non-Native Species <br />A species is considered invasive if it is non-native to the ecosystem under consideration, and its <br />introduction causes, or is likely to cause, economic or environmental harm or harm to human <br />health (Executive Order 13112). The designation of "noxious" weed refers to species that <br />usually result in significant crop damage, threaten livestock or human heath, and/or are <br />particularly aggressive and difficult to manage. Ground disturbing activities increase the <br />chances of noxious weed infestation. The Grandview Ridge Management Plan states that <br />"prevention, early detection, control and eradication of small noxious weed patches remains the <br />most practical, economical and effective means of weed management" (BLM 2000). <br />The BLM San Juan Public Lands Cent has adopted the prioritization of weed treatment as <br />developed by the Colorado Department of Agriculture (2007). Noxious weed management is <br />divided into three groups: <br />Group A - species designated for eradication. <br />Group B - species for which noxious weed management plans are designed to stop their <br />continued spread. <br />Group C - species for which management plans are not designed to eradicate or to stop <br />their continued spread, but to provide additional education and research. <br />The La Plata County Weed Distribution and Management Plan provides two levels of noxious <br />weed management and enforcement. Management Goal #1, eradication, applies to weed species <br />which are not yet widespread in La Plata County. Goal # 2, management and stepped buffering, <br />applies to a group of weeds which are fairly common in La Plata County and may occur in large <br />populations (La Plata County 2006). <br />During field surveys of the project area on 6 November 2007, no Group A noxious weeds were <br />identified. However, two Group B species, musk thistle (Carduus nutans) and filaree (Erodium <br />cicutarium) were found in the project area. Musk thistle was found in scattered populations <br />throughout the project area. One musk thistle infestation consists of approximately 40-45 plants. <br />Musk thistle is also listed as a La Plata County priority and enforceable species (Management <br />Grandview Gravel Pit Expansion Environmental Assessment 19