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We focus on compliance and innovation

We provide expert ecological consulting services related to the full life cycle a project: from identifying potential natural resource constraints, field studies and data collection, agency scoping and coordination, compliance strategy and reporting, mitigation design, construction oversight, to post-construction monitoring and reporting.

CORVUS is a specialized firm providing professional natural resource consulting services for a wide variety of sectors and client types.

wetland delineation along cut bank in colorado
Our focus
Clean Water Act (CWA) Section 404 compliance, Endangered Species Act (ESA) compliance, Migratory Bird Treaty Act (MBTA) compliance, restoration planning
we’ve established excellent working relationships with federal regulators and are known for our collaborative and down-to-earth project approach.
Regional Recognition
for our creative and effective environmental compliance strategies.
ESB Certified by CDOT, SBE and EBE Certified by CCoD

Our services include:

Clean Water Act section 404 compliance
Threatened and endangered species surveys
Endangered Species Act compliance
Wetland and riparian mitigation and restoration
National Environmental Policy Act compliance
Migratory Bird Treaty Act compliance

CORVUS provides expertise in ecological consulting and research, and specializes in compliance with federal and state environmental regulations.

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Our Team

Tim DeMasters

Tim DeMasters

Principal / Project Manager

Tim has 17 years of natural resource consulting experience working on a large variety of projects ranging from large hard-rock mines in AK, coal mines in WY, pipelines in IL and TX, to many energy, transportation, water resources, and development projects throughout in Colorado.

Korby Mintken

Korby Mintken

Transportation and Wildlife Biology Lead / Project Manager

Provides biological consulting and environmental permitting expertise to projects in Colorado. He has over 9 years of experience in National Environmental Policy Act (NEPA) compliance, including extensive experience with Noxious Weed surveys and management plan development, Migratory Bird Treaty Act (MBTA), Bald and Golden Eagle Protection Act (BGEPA), Endangered Species Act (ESA), and Clean Water Act (CWA) compliance, as well as other wildlife-related laws, as related to construction projects in Colorado.

Tony LinkedIn headshot

Tony Fastiggi

Environmental Technician

Environmental scientist with 2+ years’ experience with the Bureau of Land Management in rangeland ecology. Knowledgeable on the NEPA process, federal environmental regulations, wetland science, rangeland management, and technical writing. A diverse environmental science background that includes rangeland ecology, botany, sustainability research, remote wilderness fieldwork, and GIS. Passionate to be part of the climate and environmental solution by leveraging new technological and social approaches.

Joe Allison

Joe Allison

Operations Assistant / Env Tech

Joe has ten years of industry experience in environmental consulting, and specializes in water quality and water-related regulations. His strengths include business development and operations. He has a passion for landscape architecture and design. Joe provides a range of services from biological technician tasks to business strategy, business planning, and operations assistance.

Kelly Anolin

Kelly Anolin

Bookkeeper / Accounting Administrator

Highly experienced bookkeeper, with years of experience in the professional service sector. Has managed accounts for a large variety of small businesses.

Madeline (Maddie) Shields

Madeline (Maddie) Shields

Biologist / GIS Lead

Highly technical biologist, with over 10 years experience on solar and energy transmission projects. A botanist by trade and training, now focuses on wetland delineations and permitting, eagle and other migratory bird surveys. Strong GIS skills, Maddie runs our most complex mobile data form projects.

James (Jimmy) Turowsky

James (Jimmy) Turowsky

 Biologist / GIS Specialist

James joined CORVUS Environmental Consulting in November 2021. He is a biological technician with experience in Geographic Information Systems. James previously worked for the Colorado Natural Heritage Program where he surveyed wetlands and alpine ecosystems throughout the state.

Adam Verrell

Adam Verrell

Restoration Biologist

Adam has a diverse background in ecological restoration, biological consulting, and natural resource management. He has experience designing and managing revegetation projects, overseeing and conducting a wide array of ecological monitoring efforts, and consulting on environmental regulations in numerous industries. With over 8 years of experience conducting fieldwork in a variety of ecosystems, Adam brings with him a profound passion for the outdoors and dedication to the natural world.

Let’s connect!

Please feel free to contact CORVUS any time! We love to talk about environmental compliance (really!) and would be happy to talk to you about your project and its compliance needs.

CORVUS is a remote-first team, based at 

Centennial, CO 80121






info [at] corvusenv.com

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