2023-10-03_REVISION - M1977344 ‎(9)‎

• Permit No: M1977344
• IBM Index Class Name: Revision
• Doc Date: 10/3/2023
• Doc Name Note: App 4.9 Red Creek Quarry Vegetation
• Doc Name: Request For Amendment To Permit
• From: Holcim ‎(US)‎ Inc.
• To: DRMS
• Type & Sequence: AM2
• Email Name: MAC
• Email Name: TC1
• Media Type: D
• Archive: No

Technical Memorandum

1
DRAFT for review purposes only. Use of contents on this sheet is subject to the limitations specified at the beginning of thi s document.
Red Creek Quarry_VegReport_20230911
Table of Contents
List of Tables ............................................................................................................................................................. 1
Introduction ............................................................................................................................................................... 2
Section 1: Project Description ................................................................................................................................. 2
Section 2: Project Location ...................................................................................................................................... 2
2.1 Ecosystem Setting .............................................................................................................................................. 2
2.2 Climate ................................................................................................................................................................ 3
2.3 Land Use ............................................................................................................................................................. 3
2.4 Soils 3
2.4.1 Fremont County Soils ........................................................................................................................ 3
2.4.2 Pueblo County Soils ........................................................................................................................... 4
Section 3: Field Survey Methodology ...................................................................................................................... 5
3.1 Vegetation Survey Area ...................................................................................................................................... 5
3.2 Field Documentation.......................................................................................................................................... 5
3.3 GIS Data Collection ............................................................................................................................................ 5
Section 4: Field Survey Results ............................................................................................................................... 5
4.1 Plant Species Observed ..................................................................................................................................... 5
4.2 Discussion ........................................................................................................................................................ 11
4.2.1 Rare plants ....................................................................................................................................... 11
4.2.2 Noxious weeds ................................................................................................................................. 12
References .............................................................................................................................................................. 13
Attachment A: Maps .............................................................................................................................................. A-1
Attachment B: Public Database Reports .............................................................................................................. B-1

List of Tables
Table 1. Plant Species Observed ............................................................................................................................. 6
Table 2. Dominant Plants by Soil Type .................................................................................................................... 9