Welcome to the Oregon Grotto Web Site!

The Oregon Grotto is a Portland/Vancouver area grotto with members from all over Oregon and Southwestern Washington. The Oregon Grotto is a chapter of the National Speleological Society, and a Federally chartered non-profit organization (501-C3).

Grotto Meetings

We welcome anyone who is interested in caving to attend meetings which are held at 8:00 P.M. on the third Friday of every month at Round Table Pizza (Salmon Creek, 13009 NE Highway 99 Vancouver WA).

Western Regional 2024

WESTERN REGIONAL 2024 coming to Cougar Washington this Sept. 19th to 22nd.

Web page click here.

Upcoming Events

delayed till next year in May sometime. Some years ago, the OHDG discovered several geologically remarkable and highly fragile caves. We've been working with the Forest to get proper management and protection for them. In the future, a trustee program is anticipated to allow grotto visitation to the caves in very controlled and responsible way. These [...]

Western Regional – Lake Cave

September 19 - September 22

This will be a self guided trip. You Park at the Trail of Two Forest, which requires a NW forest pass. They have machine in parking lot. Also maybe available at Cougar store. The cave is about 10 min. walk past the outhouse. The is almost all walking, with a ladder climb down and another [...]

Charlie and Jo Larson

Charlie Larson

This site is dedicated to Charlie Larson’s life work to cavers, this site, family and friends. 50 years with the Oregon Grotto. Great caver and wonderful person who gave so much of his life to the cavers. Passed away June 11th, 2015. Thanks for all you did Charlie – we will miss you.

Grotto Officers

Chairman Ahrlin Bauman
Vice Chair Garry Petrie
Library Historian Charlie Larson, Died June 11th 2015
Vertical Tom Peterson
Cave Store Kim Luper
Website Matthew Farnell, Kim Luper, Ahrlin Bauman
Library Kim Luper
Conservation Ahrlin Bauman