The rumor that the Conga mining project would be canceled  and that the workers would be laid off appears to be the precursor of a new series of protests against the project.
This rumor spread quickly on the morning of June 10, 2013, provoking the almost immediate appearance of the Minister of Energy and Mining to deny  the report. He stated that the project was going ahead and as far as the workers, there would be a relocation in most cases.
Almost simultaneously, Yanacocha issued  a statement confirming its activity and reported that they were in the process of socializing benefits from the recently constructed Chailhuagón reservoir. It also said “the construction of the Perol reservoir will be initiated when the necessary permits are obtained, which we estimate could be obtained by the second quarter of 2014.”
These announcements confirming that the mining project would continue working somehow behind the back of the populace resulted in the community members of Cajamarca announcing  a march to be held on Monday, June 17, towards Lake Perol, located within the land intended for the Conga mining project. It was learned that various groups of workers supported  the measure in defense of water resources that supply the agricultural and livestock region of Cajamarca.
The resurgence of the protests are worrying  [es] to the parties interested in not losing the big mining projects. The government has also reiterated  [es] the importance of this project in particular, and the decision at the presidential level to support and not hinder these investments.
In practice, this meant that in the early hours of Monday the 17th the national police reinforced  [es] security measures at the Cajamarca and Yanacocha plants. For its part, the prosecutor's office of Cajamarca called  [es] for calm and the avoidance of violence during the mobilization.
It was also learned  on the morning of the 17th that villagers from Sorochuco, Celendín, Bambamarca and Cajamarca were heading to Lake Perol. Around mid-day it was reported  [es] that between 600 and 700 protesters were already at the lake. By the evening, there were reports  of 2500 or 3000 ronderos (civilian community patrollers) in the immediate vicinity of the lake, with the intent to create a permanent camp for monitoring and preventing Yanacocha from starting to work there.
Professor Segundo Matta (@MattaColun ) [es] tweeted two photos, the first of the arrival of the ronderos at the lake, and the other of the site were the monitoring camp was supposedly to be set up:
[Estoy] sumamente preocupado por la reactivación del conflicto en Cajamarca, sin que el Gobierno haya intentado buscar soluciones de fondo y, por el contrario, lo que queda en evidencia es que le han mentido al país y le han mentido a Cajamarca al decir que el proyecto estaba paralizado
[I am] very concerned about the resumption of the conflict in Cajamarca, without the government trying to seek substantive solutions, to the contrary, it's clear they have lied to the country and they have lied to Cajamarca in saying that the project was at a standstill.
The website Solsticio Perú reported  [es]:
En Cajamarca hay muchos policías. En la zona de la tranquera, en el camino de acceso a la laguna El Perol, se ven a destacamentos policiales. Hasta el momento no hay indicios de hostilizaciones contra los marchantes.
There are a lot of police in Cajamarca. In the area near the gate, on the access road to Lake Perol, police detachments can be seen. So far there is no indication of hostilities against the marchers.
The blog Servindi collected information from various sources, among them mentioning  [es]:
Un hecho que llamó la atención fue el inesperado corte de energía eléctrica en el sector Lucmacucho, evitando que radios locales transmitieran en vivo las incidencias de la movilización.
One fact that caught our attention was the unexpected power outage in the Lucmacucho sector, preventing local radios from transmitting live events from the mobilization.
Actualidad Ambiental published  [es] several photos from different moments of the march.
During the evening hours in the city of Cajamarca, a vigil and prayer service was held by the camping community members, known as the Guardians of the Lagoons, as reported by the Twitter user @Puruay  [es]:
@Puruay : VIGIL in Cajamarca: Lord, we thank you for taking care of our Guardians, to protect our lagoons.
And from Lima, the user @Indignados_Peru  [es] comments:
@Indignados_Peru : Conga: The protests continue in Cajamarca and the mining company is minimizing them. Another social conflict in the making….
Although it turned out that  [es] three protesters were arrested, they were later released. The company also later issued a statement  [es] saying there were no injuries or arrests in the protests. However, it was unknown how the situation would develop in the ensuing hours.