The inscription on the Lamas stone has always been shrouded in great mystery, with various theories about its origins. It is estimated that this inscription dates back to the second century A.D., a Romanization period of this territory. Registration is bilingual, written in Latin and a Lusitanian dialect. According to this, here was held a sacrifice ordered by two Romans, Rufino and Tiro, and offered by two nations, the Viaminicori and Petravioi to the indigenous deities, Crouga and Ioeva. The offering to the deities happened usually at the sacrifice of animals and in this case, according to the inscription, it is thought to have been a pig. Having been ordered by the Romans in honor of Indigenous deities was certainly important reason for this collective sacrifice to take place, and he may be related to a peace treaty between Roman and Lusitanian people.
Following the rural roads of Lamas, we find the Corgo stream that, being born in Mões village, crossing a stunning valley fracture, passing through Rio de Mel village and flowing into the Vouga river. Here we can find green meadows, mainly used for grazing, preserving a great floristic diversity. Also along the river Corgo we can find a great diversity of fauna and flora. The riparian corridors and forests benefit the local birdlife. Here we can see and hear various birds such as the nightingale, the robin or even the beautiful bullfinch, which occasionally arises in the region, usually in hardwood forests. Regarding the herpetofauna, the riparian habitat together with hardwood forests and traditional agricultural practices promotes the diversity of species such as the iberian frog, fire salamander or the iberian emerald lizard. Regarding the flora along the Corgo stream it also has a sharp diversity of species like the black alder, ash, willow, daffodils, hoop petticoat daffodil or royal fern.