October 2025 - Colorado State University, USA
The next SWAT Conference & Workshops will be held 20-24 October, 2025 at Colorado State University in Fort Collins, Colorado, USA.
Colorado State University is organizing an International Soil and Water Assessment Tool (SWAT) Conference and Workshops in collaboration with the USDA-ARS and Texas A&M AgriLife Research. The conference has become the most important scientific gathering for international experts and institutions in the field of river basin management.
| Abstract Deadline | 1 Sep 2025 |
|---|---|
| Early Registration Ends | 1 Sep 2025 |
| Workshops | 20-21 Oct 2025 |
| Conference | 22-24 Oct 2025 |
Call for Papers
At this time we are not accepting remote presentations at this conference. After the deadline, if space permits, we will consider limited presentations.
Presenters are required to register for the conference and there are no additional funds set aside to grant to participants. Please only submit an abstract if you are able to support your registration fee and travel if applicable.
Deadline: 1 September 2025
Registration
Conference in-person:
EARLY BIRD by 1 September 2025: $300 USD, or $250 for students
AFTER 1 September 2025: $350 USD, or $300 for students
The in-person conference registration fee includes coffee breaks, lunch, and the dinner gala for the participant.
Conference online participation:
FREE for non-presenters
While we are not currently accepting remote presentation, if we open at a later date it will be $150 USD, or $100 for students
Workshop both in-person and online:
$200 USD, or $150 USD for students
Registration opening soon.
Important Registration Information
Payments must be made online using a credit card. We cannot accept bank transfers or cash payments.
If you require a visa invitation letter, we are only authorized to issue one if you have an approved abstract or an approved scientific justification for attending the conference. Please contact us before registering if you are unsure. Registration refunds are subject to a 5% processing fee and must be requested by 1 October 2025. No refunds are possible after 1 October 2025.
After registering, please allow up to 5-7 business days for a PDF invoice.
For all other questions or concerns please read our Registration Tips and FAQs page first, then contact us at the email address on that page for any other inquiries.
Workshops
Workshops will be offered concurrently (you may only attend one), both in-person and online 20-21 October 2025, approximately 09:00-17:00. Please bring your own laptop. We will contact you the week before the workshop to make sure you have the required software.
SWAT+ Beginner
This is course designed to introduce users to the SWAT+ model, review necessary and optional inputs, and familiarize the user with the QSWAT+ and SWAT+ editor interfaces. It is assumed that attendees have a working knowledge of QGIS. The course will not review basic concepts on QGIS usage prior to covering the SWAT/QGIS interface. SWAT+ workshop topics.
SWAT+ Toolbox
SWAT+ Toolbox is designed to work with the SWAT+ model. This workshop will focus on sensitivity analysis, model calibration, evaluation, and validation using SWAT+ Toolbox. The software is currently only available on Windows. You are encouraged to bring your own laptop but model data used in the workshop will be provided.
SWAT+ gwflow
This workshop will cover the basics of implementing the groundwater flow module gwflow into an existing SWAT+ model. The theory of the gwflow module will be introduced and its use will be demonstrated using example datasets. Model output will be processed to create maps of groundwater inflows and outflows. The use of the gwflow module for simulating nutrient fate and transport in groundwater also will be presented. Users are expected to have an understanding of basic ArcMap routines and be familiar with the use of SWAT+ for watershed modeling.
APEX (Agricultural Policy/Environmental eXtender)
This workshop covers the fundamental principles of the APEX model with hands-on exercises for use in simulating farm/watershed management. The objective of the workshop is to introduce ArcAPEX to new users, to offer hands on exercises, and to and familiarize users with general procedures of model development, implementation, and evaluation.
Travel
The conference will take place at Colorado State University (founded 1870; student population = 34,000) in Fort Collins, Colorado (population: 170,00), located 60 miles north of Denver.
Getting to Fort Collins, Colorado:
- Fly to Denver International Airport (DIA)
- Travel from DIA to Fort Collins:
- Take a shuttle from Denver and drop off either at CSU Transit Center, or to hotel.
- Car rental from DIA. Approximately 1 hour drive from airport to Fort Collins.
Venue
Workshops, conference sessions, lunches, and coffee breaks will take place in the Lory Student Center (LSC) on campus (circled white in the map below). The Gala dinner will be held at the CSU Canvas Stadium (entrance circled in black in the map below).
Recommended Hotels
- Hilton Fort Collins ($135) (425 W. Prospect; immediately south of CSU campus)
- Best Western University Inn ($105) (914 S. College; immediately east of CSU campus)
- Fort Collins Marriott ($125) (3 miles south of CSU campus)
Visas
If you reside outside of the United States, please check the visa requirements for your country.
Reminder: if you need a visa invitation letter, we are only authorized to issue one if you have an approved abstract or an approved scientific justification for attending the conference. Please contact us before registering if you are unsure.
Local Organizing Committee
- Ryan Bailey, Civil & Environmental Engineering, CSU (chair)
- Mazdak Arabi, Civil & Environmental Engineering, CSU
- Ryan Smith, Civil & Environmental Engineering, CSU
International Organizing Committee
- Raghavan Srinivasan, Texas A&M AgriLife Research, USA
- Jeff Arnold, Texas A&M AgriLife Research, USA
- Arun Bawa, Texas A&M AgriLife Research, USA
- Jaclyn Tech, Texas A&M AgriLife Research, USA
Scientific Committee
Contact
For registration and invoicing question, please first read our Tips and FAQs page. For all other questions contact the international organizers at eco.web@tamu.edu.
Please add this email addresses to your contacts to ensure you receive our messages.
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