Interactive 50-state rockhounding map, locations, rules and field guides
REVIEWED LOCATION
Karvės Ola — Protected Gypsum Sinkhole / No Collecting Rockhounding Status & Field Guide
Karvės Ola is northern Lithuania’s best-known studied geological monument, a deep karst sinkhole whose underground void formed through gypsum dissolution. It is included to teach users where collecting is inappropriate and unsafe.
Protected / viewing statusVery high evidenceviewpoint map precisionCurrent review cycle freshnessImportant: No collecting, digging or cave entry.
What is here
approximately 12.6 m-deep karst sinkhole with underground cavity formed where gypsum dissolved
Materials / interest: Gypsum
Collecting and access
Protected geological-monument viewing only. No descent, digging, gypsum removal or disturbance of the sinkhole/cave system is represented.
Use the official surface path/viewing area; do not descend into the cavity.
Detailed status
viewing
Permission
Not flagged
Permit
Not flagged
Fee
Not flagged
Guide
Not flagged
Booking
Not flagged
Surface collecting
no
Hammering
no
Digging
no
Safety
Active karst collapse is possible; a new cavity opened at the bottom in 2023. Keep behind barriers and off unstable margins.