vps The Variable Probability Sampling course is offered as a service to foresters. Two popular methods of timber cruising will be covered in detail: variable-plot sampling and 3-P sampling (Probability, Proportional to Prediction). The course is suitable for relative beginners as well as those with experience who like to brush up on the principles and up-to-date computation techniques using hand calculators and microcomputers. Field exercises using both techniques are an important part of the course.

Participants are invited to submit problems they have encountered in either field application or office computation in variable-plot sampling for a special session during the first part of the program. All such questions may be submitted in advance to the short course director, Dr. James Kiser, before March 1, 2020.

Preliminary Schedule at a Glance

Monday, March 23 – Registration begins at 11 a.m., Course begins at 1:00 p.m.
Tuesday, March 24 through Thursday, March 26 – Full day coursework with a mix of lecture and field work
Friday, March 27 – Coursework until noon. Program ends at 12:00 noon


Oregon State University
Richardson Hall, Room 243
3180 SW Jefferson Way
Corvallis, OR 97331


Registration Now Open!


Course Fee: 

Early Bird – for registrations prior to midnight on February 3rd:  $795

Late Registration Pricing – for registrations after 12:01a.m. on February 4th:  $895

Course fee includes lab and field work, as well as a light breakfast and lunch each day.


Click Here to Register

(Registration is through the OSU Conference Services Registration Portal. If you have not registered for an OSU conference in the past, you will be prompted to create a free registration account.)


Cancellation Policy:
Cancellation requests must be made in writing by email to conferences@oregonstate.edu no later than two weeks prior to the workshop start date in order to receive a refund (minus a $50.00 administrative fee). Requests made after that time will not receive a refund. Substitutions may be allowed.

If you have any questions, please contact OSU Conference Services at 1-800-678-6311, 541-737-9300 or conferences@oregonstate.edu.

We look forward to seeing you at 1:00 p.m. on Monday, March 23rd at:

The LaSells Stewart Center, on the OSU campus in Corvallis, Oregon at 875 SW 26th Street, in the Ag Leaders Room, 

For directions to the LaSells Stewart Center, AG Leaders Room click here.

Equipment Needed:
Please note the following is helpful, please bring with you for the workshop if you have them:

  • American Relaskop
  • Laptop
  • Loggers Tape
  • D Tape

Rain clothes will be needed for the field problems in the event of wet weather. Also recommended are a clinometer, a diameter tape, and a wedge prism (30 BAF will be used during the field problem). A Spiegel Relaskop would be helpful.

Location Details:

Oregon State University
Richardson Hall, Room 243
Corvallis, Oregon 97331

Go here for a campus map


Parking on Campus:
Visitor permits are required Monday – Friday, 7:00 a.m. – 5:00 p.m.
Visitor permits are $10-$12 per day. (Specify a B parking pass)
Guest parking is available in the B3 parking lot across from Richardson Hall, accessible from Washington Street or 30th Street.

When parking on Campus, Visitor Permits must be displayed on the dash of your vehicle at all times. If the permit is not displayed you may receive a parking violation. It is recommended that permits be purchased online prior to your arrival. However, there are kiosks located in each of the visitor parking lots to purchase a permit on site if needed.

To purchase a permit online prior to your arrival, click here.
Once you complete the payment process a confirmation letter will appear and one will be sent to your email. This confirmation letter will serve as your permit. Print the confirmation letter and place it on your dash while parking on campus. All vehicles without permits will be ticketed.
Parking questions may be directed to 541-737-2583. Go here for an OSU parking map.

Note: if you are staying at the Hilton Garden Inn, parking is complimentary. You can leave your car in the Hilton parking lot at no charge.

Campus Transportation via Beaver Bus:  The Beaver Bus is a complimentary shuttle service, that makes regular stops throughout campus.  More information on the shuttle can be found here: http://parking.oregonstate.edu/shuttle.


*Please note that participants are responsible for arranging and paying for their lodging arrangements.

Hotels in the area:

Hilton Garden Inn (Across the street from the course location in The LaSells Stewart Center)

2500 SW Western Boulevard
Corvallis, Oregon  97333
Phone Number: 541-752-5000

A select number of rooms are available at Oregon State University’s headquarters hotel, the Hilton Garden Inn, which is across the street from the LaSells Stewart Center. To reserve a room at the Hilton Garden Inn and receive the special group rate of $142.00 + tax per night, Click here to book your reservation or call 1-541-752-5000. If you are staying at the Hilton Garden Inn, parking is free in the hotel lot. We recommend leaving your car at the Hilton and walking the short distance between the Hilton and the LaSells Stewart Center.Please book your room by March 2, 2020 to receive the group rate.


Holiday Inn Express Corvallis

781 NE 2nd Avenue
Corvallis, OR 97330
Tel: (541) 752-0800
Website: Holiday Inn Express

The Holiday Inn is a little further from campus and is a cost effective lodging option. You can receive a 20% discount by reserving a room online by using this link: Book your Conference Rate at Holiday Inn Express Corvallis. Please note the link will take you to the Holiday Inn Express website. Click on the orange “Availability Box” in the upper right-hand corner of the website. You will be directed to the booking page where you can enter your dates and the rate for OSU will automatically be applied to your reservation.

You can also call the Holiday Inn Express at (541) 752-0800 and mention the rate called “Conference Rate” to book your room and receive the 20% discount.



Best Western
925 NW Garfield Avenue
Corvallis, OR  97333

Comfort Suites
1730 NW 9th Street
Corvallis, OR 97333

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