2022-05-10_GENERAL DOCUMENTS - M1993041

• Permit No: M1993041
• IBM Index Class Name: General Documents
• Doc Date: 5/10/2022
• Doc Name: Special Use Permit
• From: Boulder County
• To: DRMS
• Email Name: JPL
• Email Name: JLE
• Media Type: D
• Archive: No

Dowe Flats Quarry Site Description and Future Mining Impact Analysis
Table of Contents
1 Introduction............................................................................................................................. 1
2 Site Features............................................................................................................................ 1
2.1 Streams............................................................................................................................. 1
2.2 Irrigation Ditches.............................................................................................................. 1
2.3 Areas Subject to Flooding................................................................................................ 3
2.4 Lakes................................................................................................................................ 3
2.5 High Ground Water Areas................................................................................................ 3
2.6 Topography......................................................................................................................3
2.7 Current Land Use.............................................................................................................3
2.8 Vegetation Communities..................................................................................................4
2.8.1 Reclaimed Grassland ................................................................................................4
2.8.2 Temporary Reclamation............................................................................................4
2.8.3 Lowland Grassland................................................................................................... 6
2.8.4 Improved Pasture......................................................................................................6
2.8.5 Riparian..................................................................................................................... 6
2.8.6 Other Communities Outside Dowe Flats.................................................................. 6
2.9 Wetlands........................................................................................................................... 7
2.10 Climatology.................................................................................................................. 7
3 Wildlife................................................................................................................................... 7
3.1.1 Prairie Dogs and Raptors.......................................................................................... 8
3.1.2 Big Game.................................................................................................................. 8
3.1.3 Threatened and Endangered Species and Species of Concern.................................. 9
3.1.4 Wildlife Stewardship ...............................................Error! Bookmark not defined.
4 Long- and Short-Term Ecological Impacts........................................................................... 10
5 References............................................................................................................................. 11
Figures
Figure 1: Dowe Flats Current and Proposed SUP Boundaries.......................................................2
Tables
Table 1: Common Species in Grassland/Pasture Communities...................................................... 5
Table 1: Wildlife Species with Dowe Flats in Their Known Range............................................... 8
Habitat Management, Inc. i May 2, 2022