2016-07-14_PERMIT FILE - M2016010

• Permit No: M2016010
• IBM Index Class Name: Permit File
• Doc Date: 7/14/2016
• Doc Name: Adequacy Review Response
• From: Transit-Mix Concrete Co.
• To: DRMS
• Email Name: AME
• Media Type: D
• Archive: No

Tr
ansit Mix Concrete Co.
Mountain Shrubland
This community occupies 598 acres (39%) and is highly variable as it intergrades with stands of
pinyon -juniper and ponderosa pine. Principal shrub species are Gambel oak, mountain
mahogany, and three -leaf sumac. Ponderosa pine, pinyon -pine, Rocky Mountain juniper, and
one -seed juniper are present in this community at varying densities. Principal forbs include
Louisiana sagewort and fringed sage, with associated buckwheat, broom snakeweed, and prickly
pear. Principal grasses include blue gramma, mountain muhly, little bluestem (Schizachyrium
scoparium), and bristly wolfstail. Included in this community are scattered stands of Gambel oak
savannah characterized by dense, closed -canopy stands of mature Gambel oak with grassland
between. These areas occur most commonly adjacent to riparian forest. In some of these stands,
poison ivy and chokecherry grow in the understory. There is often a very dense understory of
perennials including giant hyssop, woodbine, virgin's bower (Clematis sp.), wild tarragon, and a
variety of other species. Dalmatian toadflax, common burdock (Arctium minus), and common
mullein (Verbascum thapsis) occur in this community. Average cover and height estimates for the
principal plant species in this community are provided in Table 5.
Table 5. Mountain Shrubland: Cover and Height Estimates for Principal Plant Species
Common Name Scientific Name Height* Absolute Cover (%)*
Trees
Juniper
Juniperus scopulorum, J. monosperma
10-15 ft
2.5-5
Pinyon pine
Pin us edulis
10-12 ft
2.5-5
Tall Shrubs
Gambel oak
Quercus gambelii
4-13 ft
7.5-30
Mountain mahogany
Cercocarpus montanus
5-7 ft
2.5-7.5
Three -leaf sumac
Rhus trilobata
3-6 ft
2.5
Forbs
Louisiana sagewort
Artemisia ludoviciana
12-24 in
2.5-7.5
Fringed sage
Artemisia frigida
18 in
2.5
Grasses
Blue gramma Bouteloua gracilis 18 in 2.5
Mountain muhly Muhlenbergia montana 30 in 2.5
Bristly wolfstail Muhlenbergia alopecurioides 24 in 2.5
Little bluestem Schizachyrium scoparium 24 in 2.5
* Due to the wide variation within the community, average height and cover may be provided
as a range.
Hitch Rack Ranch Quarry Permit Application M-2016-010
July 14, 2016 J-8